#1d2139

Color #1d2139

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 19.28 Nearest Tailwind class slate-900 #0f172b · ΔE 4.1

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Conversions

HEX

#1d2139

RGB

rgb(29, 33, 57)

HSL

hsl(231.4, 32.6%, 16.9%)

HSV / HSB

hsv(231.4, 49.1%, 22.4%)

CMYK

cmyk(49.1%, 42.1%, 0%, 77.6%)

LAB

lab(13.5, 5.86, -16.14)

LCH

lch(13.5, 17.17, 289.95)

OKLCH

oklch(25.6%, 0.0456, 275.54)

HWB

hwb(231.4, 11.4%, 77.6%)

Harmony colors

Complementary

#39351d

Analogous

#1d2f39

#1d2139

#271d39

Triadic

#1d2139

#391d21

#21391d

Split-complementary

#1d2139

#39271d

#2f391d

Tetradic

#1d2139

#351d39

#39351d

#21391d

Square

#1d2139

#391d2f

#39351d

#1d3927

Shades

Color #1d2139 mixed toward black.

#181c30

#131626

#0f111d

#0a0b13

#05060a

Tints

Color #1d2139 mixed toward white.

#353c68

#4d5797

#737cb8

#a1a8cf

#d0d3e7

Tones

Color #1d2139 mixed toward gray.

#1f2337

#222434

#242632

#262830

#29292d

Accessibility

Aa White text on this color

15.8:1

Aa Black text on this color

1.33:1

White text reads better on this background (15.8:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f1f34 · ΔE 1.9

Deuteranopia

#1f1e33 · ΔE 2.4

Tritanopia

#1d302f · ΔE 18.4

Achromatopsia

#232323 · ΔE 13

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

Code

CSS

background-color: #1d2139;

Tailwind (arbitrary value)

bg-[#1d2139]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#1d2139 (#1d2139) is rgb(29, 33, 57) in RGB.

No, #1d2139 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 #1d2139, or check how it holds up for accessibility.

Generate a palette → Check contrast