Colors

#18181B

Zinc 900

Zinc 900 is #18181B — a neutral used for type, borders, and surfaces. The values below are the same sRGB color in HEX, RGB, HSL, HSV, a simple CMYK conversion, and OKLCH. CMYK here is a channel formula for reference, not a press proof.

Conversions

HEX
#18181B
RGB
rgb(24, 24, 27)
HSL
hsl(240,6%,10%)
HSV
hsv(240, 11%, 11%)
CMYK
cmyk(11,11,0,89)
OKLCH
oklch(21.0% 0.006 285.9)

Tints and shades

Tints mix this color toward white. Shades mix it toward black in sRGB. For a 50–950 ramp, open the tint and shade generator.

Tints

#464649

20% white

#747476

40% white

#A3A3A4

60% white

#D1D1D1

80% white

Shades

#131316

20% black

#0E0E10

40% black

#0A0A0B

60% black

#050505

80% black

Harmony palettes

These schemes rotate hue from Zinc 900. Read the relationships in color theory 101 or adjust them on the color wheel.

Complementary

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#18181B

#1B1B18

#3D3D42

#42423D

#000000

Analogous

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#181A1B

#18181B

#1A181B

#1B181B

#181B1B

Triadic

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#18181B

#1B1818

#181B18

#423D3D

#000000

Split Complementary

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#18181B

#1B1A18

#1A1B18

#4A4A4F

#000000

Monochromatic

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#303036

#54545F

#787887

#A0A0AB

#C9C9CF

Tetradic

Open in palette generator

#18181B

#1B181A

#1B1B18

#181B1A

#3A3638

Contrast against white and black

Ratios use the WCAG relative-luminance formula. AA normal text needs 4.5:1 and large text needs 3:1 under Success Criterion 1.4.3. AAA uses 7:1 and 4.5:1. A pass here is only this pair, not a full page audit. Check other pairings in the contrast checker.

On white · 17.72:1
AA normal text Pass
AA large text Pass
AAA normal text Pass
AAA large text Pass
On black · 1.19:1
AA normal text Fail
AA large text Fail
AAA normal text Fail
AAA large text Fail

Similar named colors

Nearest CSS named colors by RGB distance. Distance is not a perceptual match.

Use this color