#12131d

Color #12131d

A muted very dark blue.

Closest named color Black #000000 · ΔE 9.58 Nearest Tailwind class slate-950 #020618 · ΔE 3.2

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#12131d

RGB

rgb(18, 19, 29)

HSL

hsl(234.5, 23.4%, 9.2%)

HSV / HSB

hsv(234.5, 37.9%, 11.4%)

CMYK

cmyk(37.9%, 34.5%, 0%, 88.6%)

LAB

lab(6.17, 2.25, -6.98)

LCH

lch(6.17, 7.33, 287.87)

OKLCH

oklch(19.1%, 0.0203, 279.93)

HWB

hwb(234.5, 7.1%, 88.6%)

Harmony colors

Complementary

#1d1c12

Analogous

#12181d

#12131d

#16121d

Triadic

#12131d

#1d1213

#131d12

Split-complementary

#12131d

#1d1612

#181d12

Tetradic

#12131d

#1c121d

#1d1c12

#131d12

Square

#12131d

#1d1218

#1d1c12

#121d16

Shades

Color #12131d mixed toward black.

#0f1018

#0c0d13

#09090e

#06060a

#030305

Tints

Color #12131d mixed toward white.

#30324d

#4d517c

#7075a6

#a0a3c4

#cfd1e1

Tones

Color #12131d mixed toward gray.

#13141c

#14141b

#15151a

#161619

#171718

Accessibility

Aa White text on this color

18.48:1

Aa Black text on this color

1.14:1

White text reads better on this background (18.48:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#12121b · ΔE 0.8

Deuteranopia

#12121a · ΔE 1.4

Tritanopia

#121919 · ΔE 8.8

Achromatopsia

#141414 · ΔE 6.6

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

Code

CSS

background-color: #12131d;

Tailwind (arbitrary value)

bg-[#12131d]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#12131d (#12131d) is rgb(18, 19, 29) in RGB.

No, #12131d is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

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

Try it → Accessibility

Contrast Checker

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

Try it → Generators

Palette Generator

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

Try it →

Build something with this color

Generate a full palette from #12131d, or check how it holds up for accessibility.

Generate a palette → Check contrast