#12171f

Color #12171f

A muted very dark blue.

Closest named color Black #000000 · ΔE 9.9 Nearest Tailwind class gray-950 #030712 · ΔE 3.6

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Conversions

HEX

#12171f

RGB

rgb(18, 23, 31)

HSL

hsl(216.9, 26.5%, 9.6%)

HSV / HSB

hsv(216.9, 41.9%, 12.2%)

CMYK

cmyk(41.9%, 25.8%, 0%, 87.8%)

LAB

lab(7.59, 0.18, -6.36)

LCH

lch(7.59, 6.36, 271.62)

OKLCH

oklch(20.3%, 0.0178, 259.64)

HWB

hwb(216.9, 7.1%, 87.8%)

Harmony colors

Complementary

#1f1a12

Analogous

#121d1f

#12171f

#13121f

Triadic

#12171f

#1f1217

#171f12

Split-complementary

#12171f

#1f1312

#1d1f12

Tetradic

#12171f

#1a121f

#1f1a12

#171f12

Square

#12171f

#1f121d

#1f1a12

#121f13

Shades

Color #12171f mixed toward black.

#0f131a

#0c0f15

#090b0f

#06080a

#030405

Tints

Color #12171f mixed toward white.

#2e3b50

#4a5f80

#6d85aa

#9eadc7

#ced6e3

Tones

Color #12171f mixed toward gray.

#13171e

#14171d

#15181c

#16181b

#17181a

Accessibility

Aa White text on this color

17.98:1

Aa Black text on this color

1.17:1

White text reads better on this background (17.98:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#14141d · ΔE 3.2

Deuteranopia

#14141d · ΔE 3.2

Tritanopia

#121c1b · ΔE 8.1

Achromatopsia

#171717 · ΔE 5.6

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #12171f;

Tailwind (arbitrary value)

bg-[#12171f]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#12171f (#12171f) is rgb(18, 23, 31) in RGB.

No, #12171f is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #12171f, or check how it holds up for accessibility.

Generate a palette → Check contrast