#1d2b40

Color #1d2b40

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 13.94 Nearest Tailwind class slate-800 #1d293d · ΔE 0.9

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

Conversions

HEX

#1d2b40

RGB

rgb(29, 43, 64)

HSL

hsl(216, 37.6%, 18.2%)

HSV / HSB

hsv(216, 54.7%, 25.1%)

CMYK

cmyk(54.7%, 32.8%, 0%, 74.9%)

LAB

lab(17.27, 1.13, -15.13)

LCH

lch(17.27, 15.17, 274.27)

OKLCH

oklch(28.7%, 0.0433, 258.27)

HWB

hwb(216, 11.4%, 74.9%)

Harmony colors

Complementary

#40321d

Analogous

#1d3c40

#1d2b40

#201d40

Triadic

#1d2b40

#401d2b

#2b401d

Split-complementary

#1d2b40

#40201d

#3c401d

Tetradic

#1d2b40

#321d40

#40321d

#2b401d

Square

#1d2b40

#401d3c

#40321d

#1d4020

Shades

Color #1d2b40 mixed toward black.

#182435

#131d2b

#0e1520

#0a0e15

#05070b

Tints

Color #1d2b40 mixed toward white.

#334b70

#486ba0

#6f8fbe

#9fb4d4

#cfdae9

Tones

Color #1d2b40 mixed toward gray.

#202c3d

#232c3a

#262d37

#292d34

#2c2e31

Accessibility

Aa White text on this color

14.27:1

Aa Black text on this color

1.47:1

White text reads better on this background (14.27:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#24243c · ΔE 7.1

Deuteranopia

#23223b · ΔE 7.8

Tritanopia

#1e3837 · ΔE 15.6

Achromatopsia

#2a2a2a · ΔE 11.3

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

Code

CSS

background-color: #1d2b40;

Tailwind (arbitrary value)

bg-[#1d2b40]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#1d2b40 (#1d2b40) is rgb(29, 43, 64) in RGB.

No, #1d2b40 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 #1d2b40, or check how it holds up for accessibility.

Generate a palette → Check contrast