#1d2137

Color #1d2137

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 18.55 Nearest Tailwind class slate-900 #0f172b · ΔE 3.7

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Conversions

HEX

#1d2137

RGB

rgb(29, 33, 55)

HSL

hsl(230.8, 31%, 16.5%)

HSV / HSB

hsv(230.8, 47.3%, 21.6%)

CMYK

cmyk(47.3%, 40%, 0%, 78.4%)

LAB

lab(13.38, 5.14, -14.91)

LCH

lch(13.38, 15.77, 289.02)

OKLCH

oklch(25.5%, 0.042, 275.19)

HWB

hwb(230.8, 11.4%, 78.4%)

Harmony colors

Complementary

#37331d

Analogous

#1d2e37

#1d2137

#261d37

Triadic

#1d2137

#371d21

#21371d

Split-complementary

#1d2137

#37261d

#2e371d

Tetradic

#1d2137

#331d37

#37331d

#21371d

Square

#1d2137

#371d2e

#37331d

#1d3726

Shades

Color #1d2137 mixed toward black.

#181c2e

#131625

#0f111c

#0a0b12

#050609

Tints

Color #1d2137 mixed toward white.

#363d66

#4e5994

#747eb6

#a2a9ce

#d1d4e7

Tones

Color #1d2137 mixed toward gray.

#1f2335

#212433

#242631

#26272e

#28292c

Accessibility

Aa White text on this color

15.85:1

Aa Black text on this color

1.32:1

White text reads better on this background (15.85:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f1f33 · ΔE 1.9

Deuteranopia

#1f1e32 · ΔE 2.4

Tritanopia

#1d2f2e · ΔE 17.4

Achromatopsia

#222222 · ΔE 12.2

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

Code

CSS

background-color: #1d2137;

Tailwind (arbitrary value)

bg-[#1d2137]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#1d2137 (#1d2137) is rgb(29, 33, 55) in RGB.

No, #1d2137 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 #1d2137, or check how it holds up for accessibility.

Generate a palette → Check contrast