Artist Pigment Index

A free reference of 138 Colour Index (CI) pigment codes used in professional artist paints — from ancient earth pigments to modern synthetic organics.

Understanding Pigment Types

Organic Pigments

Carbon-based molecules — often synthetic dyes fixed onto a substrate, or derived from plants and insects. Typically vibrant, transparent, and high-tinting. Many modern organics (quinacridones, phthalocyanines, perylenes) have excellent lightfastness. Historical organics (alizarin, carmine) tend to fade.

QuinacridonePhthalocyaninePeryleneDPPDioxazine

Inorganic Pigments

Mineral and metal-based compounds — including natural earths, metal oxides, and synthetic mineral pigments. Typically opaque, stable, and very lightfast. Earth pigments (ochres, umbers, siennas) have been used for millennia. Cadmiums and cobalts offer unmatched opacity and permanence.

Iron OxidesCobaltCadmiumUltramarineEarth Pigments

Reading CI Codes

The Colour Index (CI) is an international standard identifying pigments by chemistry. A code like PB29 means Pigment Blue 29 (Ultramarine). Manufacturers can name a colour anything — but the CI code reveals the true pigment. Single-pigment paints (one CI code) mix more cleanly and predictably.

PY = YellowPR = RedPB = BluePG = GreenPW = White

Explore these pigments in real paint brands

Search and filter hundreds of professional oil & acrylic paints by CI pigment code, brand, and colour family.

Frequency of use in artists' paints
organic/inorganic= pigment chemistry

PY — Yellow

34 pigments
PY1organic

Hansa Yellow G

PY3organic

Hansa Yellow 10G

Bright transparent lemon yellow

PY12organic

Diarylide Yellow AAA

PY13organic

Diarylide Yellow AAMX

PY14organic

Diarylide Yellow OT

PY17organic

Diarylide Yellow 4R

PY34inorganic⚠ toxic

Chrome Yellow

Lead chromate — highly toxic, largely discontinued

PY35inorganic

Cadmium Yellow

Opaque, excellent lightfastness

PY37inorganic

Cadmium Yellow Deep

PY40inorganic

Aureolin (Cobalt Yellow)

Transparent cool yellow — can darken with age

PY41inorganic

Naples Yellow

Lead antimonate — warm historic yellow

PY42inorganic

Yellow Ochre / Mars Yellow

Synthetic iron oxide — workhorse earth yellow

PY43inorganic

Raw Sienna

Natural iron oxide earth

PY53inorganic

Nickel Titanate Yellow

Very high lightfastness — cadmium alternative

PY65organic

Hansa Yellow RN

PY74organic

Hansa Yellow 5GX

Common transparent yellow in student and artist paints

PY83organic

Diarylide Yellow HR

Warm yellow, widely used

PY97organic

Hansa Yellow 4G

PY109organic

Isoindoline Yellow

PY110organic

Isoindolinone Yellow R

Excellent lightfastness

PY119inorganic

Zinc Iron Yellow

PY120organic

Benzimidazolone Yellow H4G

PY128organic

Azo Condensation Yellow

Very good lightfastness

PY129organic

Azomethine Yellow

Green-gold hue

PY138organic

Quinophthalone Yellow

PY139organic

Isoindoline Yellow

PY150organic

Nickel Azo Yellow

PY151organic

Benzimidazolone Yellow H3G

PY153organic

Nickel Dioxine Yellow

PY154organic

Benzimidazolone Yellow H3R

Warm, high lightfastness

PY155organic

Azo Yellow

PY175organic

Benzimidazolone Yellow H6G

PY184inorganic

Bismuth Vanadate Yellow

Bright opaque yellow — leading cadmium alternative

PY213organic

Diarylide Yellow

PO — Orange

11 pigments
PO5organic

Dinitraniline Orange

PO13organic

Pyrazolone Orange

PO20inorganic

Cadmium Orange

Pure, opaque orange — excellent lightfastness

PO34organic

Disazo Pyrazolone Orange

Warm vibrant orange

PO36organic

Benzimidazolone Orange HL

Excellent lightfastness — very popular

PO43organic

Perinone Orange

Transparent warm orange

PO48organic

Quinacridone Gold

PO49organic

Quinacridone Deep Gold

PO62organic

Benzimidazolone Orange H5G

PO71organic

DPP Orange

Diketo Pyrrolo Pyrrole — excellent lightfastness

PO73organic

Pyrrolopyrole Orange

Brilliant, very high lightfastness

PR — Red

29 pigments
PR4organic

Chlorinated Para Red

PR5organic

Naphthol Carmine FB

PR9organic

Naphthol Red FRN

PR19organic

Quinacridone Red

PR48:2organic

Permanent Red 2B (Barium)

PR83organic

Alizarin Crimson

Historic — fair lightfastness, widely used

PR88organic

Thioindigo Bordeaux

PR101inorganic

Synthetic Red Iron Oxide (Mars Red)

Excellent lightfastness — most common red earth

PR102inorganic

Red Ochre (Natural Iron Oxide)

Natural earth pigment

PR108inorganic

Cadmium Red

Opaque, brilliant — excellent lightfastness

PR112organic

Naphthol AS-D Red

PR122organic

Quinacridone Magenta

Transparent cool red — indispensable on a palette

PR149organic

Perylene Red

Deep transparent red

PR168organic

Anthraquinone Scarlet

PR170organic

Naphthol Red F5RK

PR175organic

Benzimidazolone Maroon HFM

PR176organic

Benzimidazolone Carmine HF3C

PR177organic

Anthraquinone Red

Brilliant transparent red

PR179organic

Perylene Maroon

Deep dark red — very good lightfastness

PR188organic

Naphthol Scarlet AS-BS

PR202organic

Quinacridone Crimson

Deep transparent crimson

PR206organic

Quinacridone Burnt Orange

PR207organic

Quinacridone Red Light

PR209organic

Quinacridone Red

Brilliant transparent red

PR233organic

Perylene Red

PR254organic

DPP Scarlet / DPP Red

Diketo Pyrrolo Pyrrole — extremely high lightfastness

PR255organic

DPP Scarlet

PR264organic

DPP Red

PR272organic

DPP Red Orange

PV — Violet

10 pigments
PV1organic

Rhodamine B Lake

Poor lightfastness — avoid for permanence

PV14inorganic

Cobalt Violet

Inorganic — very high lightfastness

PV15inorganic

Ultramarine Violet

Inorganic — excellent lightfastness

PV16inorganic

Manganese Violet

Inorganic — classic violet

PV19organic

Quinacridone Violet / Rose

Essential transparent violet — brilliant and lightfast

PV23organic

Carbazole Dioxazine Violet

Strong transparent deep violet — very widely used

PV29organic

Perylene Violet

PV37organic

Dioxazine Violet

PV42organic

Quinacridone Violet

PV49inorganic

Cobalt Ammonium Violet Phosphate

PB — Blue

35 pigments
PB15organic

Phthalocyanine Blue

Green-blue shade — very strong tinting

PB15:1organic

Phthalocyanine Blue RS

Red shade

PB15:3organic

Phthalocyanine Blue GS

Green shade — the most used Phthalo Blue

PB15:4organic

Phthalocyanine Blue NCF

PB16organic

Phthalocyanine Turquoise

Green-blue turquoise

PB27inorganic

Prussian Blue (Iron Blue)

Deep transparent blue — darkens over time in oil

PB28inorganic

Cobalt Blue

Classic inorganic blue — excellent lightfastness

PB29inorganic

Ultramarine Blue

Warm transparent blue — indispensable classic

PB35inorganic

Cerulean Blue

Sky blue — opaque, cool temperature

PB36inorganic

Cobalt Chromite Blue

PB60organic

Indanthrone Blue

Deep transparent blue-violet — excellent lightfastness

PB66organic

Indigo

Historical plant-derived pigment

PB71inorganic

Zirconium Vanadium Blue

PB72inorganic

Cobalt Zinc Aluminate Blue

PB74inorganic

Cobalt Zinc Silicate Blue

PB86inorganic

YInMn Blue

Newly discovered inorganic blue (2009)

PBr6inorganic

Mars Brown / Burnt Umber

Synthetic iron oxide — fast drying in oil

PBr7inorganic

Raw & Burnt Umber

Natural iron oxide with manganese — essential earth

PBr8inorganic

Manganese Brown

PBr11inorganic

Iron Brown Spinel

PBr23organic

Azo Condensation Brown

PBr24inorganic

Chrome Titanate Yellow-Brown

PBr25organic

Benzimidazolone Brown HFR

Transparent reddish-brown — high lightfastness

PBr33inorganic

Zinc Iron Chromite Brown Spinel

PBk1organic

Aniline Black

PBk6inorganic

Carbon Black / Shungite

Dense, neutral black

PBk7inorganic

Lamp Black

Carbon black — warm black, slow drying in oil

PBk8inorganic

Vine Black

Charcoal-based — soft warm black

PBk9inorganic

Bone Black / Ivory Black

Classic warm black — very slow drying in oil

PBk10inorganic

Graphite

PBk11inorganic

Mars Black (Iron Oxide)

Fast drying synthetic iron oxide black

PBk19inorganic

Hydrated Iron Oxide Black

PBk28inorganic

Copper Chromite Black

PBk31organic

Perylene Black

Transparent deep black — useful for glazing

PBk32inorganic

Spinel Black

PG — Green

8 pigments
PG7organic

Phthalocyanine Green (Blue Shade)

Extremely strong tinting — classic cool green

PG17inorganic

Chromium Oxide Green

Opaque, earthy — excellent lightfastness

PG18inorganic

Viridian

Hydrated chromium oxide — transparent jewel-like green

PG19inorganic

Cobalt Green

PG23inorganic

Green Earth (Terre Verte)

Natural earth — muted, historical

PG26inorganic

Cobalt Chromite Green Spinel

PG36organic

Phthalocyanine Green (Yellow Shade)

Yellow shade — bright warm green

PG50inorganic

Cobalt Titanate Green

PW — White

11 pigments
PW1inorganic⚠ toxic

Flake White (Lead Carbonate)

Historical — toxic, but superb oil properties & drying

PW2inorganic⚠ toxic

White Lead Sulphate

PW4inorganic

Zinc White

Transparent in oil — can cause cracking, brittle

PW5inorganic

Lithopone

PW6inorganic

Titanium White

Most widely used white — very opaque, cool tone

PW7inorganic

Zinc Sulfide White

PW18inorganic

Chalk (Calcium Carbonate)

Extender pigment

PW20inorganic

Mica

Pearlescent extender

PW21inorganic

Barium Sulfate

Extender / filler

PW22inorganic

Calcium Sulfate (Gypsum)

PW25inorganic

Calcium Sulfate (Alabaster)

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