#011831

Color #011831

A vivid, highly saturated very dark blue.

Closest named color Black #000000 · ΔE 20.98 Nearest Tailwind class slate-900 #0f172b · ΔE 3.9

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

Conversions

HEX

#011831

RGB

rgb(1, 24, 49)

HSL

hsl(211.3, 96%, 9.8%)

HSV / HSB

hsv(211.3, 98%, 19.2%)

CMYK

cmyk(98%, 51%, 0%, 80.8%)

LAB

lab(7.96, 2.24, -19.28)

LCH

lch(7.96, 19.41, 276.63)

OKLCH

oklch(20.7%, 0.0583, 251.5)

HWB

hwb(211.3, 0.4%, 80.8%)

Harmony colors

Complementary

#311a01

Analogous

#013031

#011831

#020131

Triadic

#011831

#310118

#183101

Split-complementary

#011831

#310201

#303101

Tetradic

#011831

#1a0131

#311a01

#183101

Square

#011831

#310130

#311a01

#013102

Shades

Color #011831 mixed toward black.

#011429

#011021

#000c18

#000810

#000408

Tints

Color #011831 mixed toward white.

#033d7c

#0461c7

#1e87fa

#69affc

#b4d7fd

Tones

Color #011831 mixed toward gray.

#05182d

#091829

#0d1825

#111921

#15191d

Accessibility

Aa White text on this color

17.85:1

Aa Black text on this color

1.18:1

White text reads better on this background (17.85:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#0d0e2c · ΔE 7.1

Deuteranopia

#0c0a2b · ΔE 7.7

Tritanopia

#022827 · ΔE 18.8

Achromatopsia

#171717 · ΔE 13.6

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

Code

CSS

background-color: #011831;

Tailwind (arbitrary value)

bg-[#011831]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Light Steel Blue #b0c4de

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#011831 (#011831) is rgb(1, 24, 49) in RGB.

No, #011831 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.

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 #011831, or check how it holds up for accessibility.

Generate a palette → Check contrast