#011543

Color #011543

A vivid, highly saturated very dark blue.

Closest named color Midnight Blue #191970 · ΔE 26.8 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 4.6

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

Conversions

HEX

#011543

RGB

rgb(1, 21, 67)

HSL

hsl(221.8, 97.1%, 13.3%)

HSV / HSB

hsv(221.8, 98.5%, 26.3%)

CMYK

cmyk(98.5%, 68.7%, 0%, 73.7%)

LAB

lab(8.55, 13.56, -31.26)

LCH

lch(8.55, 34.07, 293.45)

OKLCH

oklch(21.7%, 0.0916, 261.52)

HWB

hwb(221.8, 0.4%, 73.7%)

Harmony colors

Complementary

#432f01

Analogous

#013643

#011543

#0e0143

Triadic

#011543

#430115

#154301

Split-complementary

#011543

#430e01

#364301

Tetradic

#011543

#2f0143

#432f01

#154301

Square

#011543

#430136

#432f01

#01430e

Shades

Color #011543 mixed toward black.

#011138

#010e2d

#000a21

#000716

#00030b

Tints

Color #011543 mixed toward white.

#022c8b

#0343d4

#2566fc

#6e99fd

#b6ccfe

Tones

Color #011543 mixed toward gray.

#06173d

#0c1938

#111b32

#171e2d

#1c2027

Accessibility

Aa White text on this color

17.65:1

Aa Black text on this color

1.19:1

White text reads better on this background (17.65:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#0b0b3b · ΔE 3.9

Deuteranopia

#0a0839 · ΔE 4.2

Tritanopia

#023533 · ΔE 26.3

Achromatopsia

#191919 · ΔE 20

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

Code

CSS

background-color: #011543;

Tailwind (arbitrary value)

bg-[#011543]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#011543 (#011543) is rgb(1, 21, 67) in RGB.

No, #011543 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.

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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 #011543, or check how it holds up for accessibility.

Generate a palette → Check contrast