#101731

Color #101731

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 21.24 Nearest Tailwind class slate-900 #0f172b · ΔE 3

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Conversions

HEX

#101731

RGB

rgb(16, 23, 49)

HSL

hsl(227.3, 50.8%, 12.7%)

HSV / HSB

hsv(227.3, 67.3%, 19.2%)

CMYK

cmyk(67.3%, 53.1%, 0%, 80.8%)

LAB

lab(8.52, 6.51, -18.33)

LCH

lch(8.52, 19.45, 289.55)

OKLCH

oklch(21.4%, 0.0522, 270.22)

HWB

hwb(227.3, 6.3%, 80.8%)

Harmony colors

Complementary

#312a10

Analogous

#102731

#101731

#191031

Triadic

#101731

#311017

#173110

Split-complementary

#101731

#311910

#273110

Tetradic

#101731

#2a1031

#312a10

#173110

Square

#101731

#311027

#312a10

#103119

Shades

Color #101731 mixed toward black.

#0d1329

#0b0f21

#080b18

#050810

#030408

Tints

Color #101731 mixed toward white.

#223169

#344ba1

#576fc8

#8f9fda

#c7cfed

Tones

Color #101731 mixed toward gray.

#13182e

#151a2b

#181c29

#1b1d26

#1e1f23

Accessibility

Aa White text on this color

17.66:1

Aa Black text on this color

1.19:1

White text reads better on this background (17.66:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#13132c · ΔE 2.7

Deuteranopia

#13122b · ΔE 3

Tritanopia

#102827 · ΔE 20.1

Achromatopsia

#191919 · ΔE 14.1

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

Code

CSS

background-color: #101731;

Tailwind (arbitrary value)

bg-[#101731]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#101731 (#101731) is rgb(16, 23, 49) in RGB.

No, #101731 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 #101731, or check how it holds up for accessibility.

Generate a palette → Check contrast