#101d37

Color #101d37

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 21.78 Nearest Tailwind class slate-900 #0f172b · ΔE 3

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Conversions

HEX

#101d37

RGB

rgb(16, 29, 55)

HSL

hsl(220, 54.9%, 13.9%)

HSV / HSB

hsv(220, 70.9%, 21.6%)

CMYK

cmyk(70.9%, 47.3%, 0%, 78.4%)

LAB

lab(11.03, 4.37, -18.69)

LCH

lch(11.03, 19.19, 283.16)

OKLCH

oklch(23.4%, 0.0535, 262.91)

HWB

hwb(220, 6.3%, 78.4%)

Harmony colors

Complementary

#372a10

Analogous

#103037

#101d37

#161037

Triadic

#101d37

#37101d

#1d3710

Split-complementary

#101d37

#371610

#303710

Tetradic

#101d37

#2a1037

#372a10

#1d3710

Square

#101d37

#371030

#372a10

#103716

Shades

Color #101d37 mixed toward black.

#0d182e

#0b1325

#080e1b

#050a12

#030509

Tints

Color #101d37 mixed toward white.

#203b70

#3159a8

#557dcd

#8ea8de

#c6d4ee

Tones

Color #101d37 mixed toward gray.

#131e34

#161f30

#1a202d

#1d212a

#202227

Accessibility

Aa White text on this color

16.76:1

Aa Black text on this color

1.25:1

White text reads better on this background (16.76:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#161732 · ΔE 4.8

Deuteranopia

#161531 · ΔE 5.8

Tritanopia

#112e2d · ΔE 19.4

Achromatopsia

#1e1e1e · ΔE 13.7

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

Code

CSS

background-color: #101d37;

Tailwind (arbitrary value)

bg-[#101d37]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#101d37 (#101d37) is rgb(16, 29, 55) in RGB.

No, #101d37 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 #101d37, or check how it holds up for accessibility.

Generate a palette → Check contrast