#1d2237

Color #1d2237

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 17.75 Nearest Tailwind class slate-900 #0f172b · ΔE 3.7

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Conversions

HEX

#1d2237

RGB

rgb(29, 34, 55)

HSL

hsl(228.5, 31%, 16.5%)

HSV / HSB

hsv(228.5, 47.3%, 21.6%)

CMYK

cmyk(47.3%, 38.2%, 0%, 78.4%)

LAB

lab(13.72, 4.4, -14.38)

LCH

lch(13.72, 15.04, 287.01)

OKLCH

oklch(25.8%, 0.0404, 273.12)

HWB

hwb(228.5, 11.4%, 78.4%)

Harmony colors

Complementary

#37321d

Analogous

#1d2f37

#1d2237

#251d37

Triadic

#1d2237

#371d22

#22371d

Split-complementary

#1d2237

#37251d

#2f371d

Tetradic

#1d2237

#321d37

#37321d

#22371d

Square

#1d2237

#371d2f

#37321d

#1d3725

Shades

Color #1d2237 mixed toward black.

#181c2e

#131725

#0f111c

#0a0b12

#050609

Tints

Color #1d2237 mixed toward white.

#363f66

#4e5b94

#7480b6

#a2aace

#d1d5e7

Tones

Color #1d2237 mixed toward gray.

#1f2335

#212533

#242631

#26272e

#28292c

Accessibility

Aa White text on this color

15.72:1

Aa Black text on this color

1.34:1

White text reads better on this background (15.72:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f1f33 · ΔE 2.4

Deuteranopia

#1f1f32 · ΔE 2.4

Tritanopia

#1d2f2e · ΔE 16.6

Achromatopsia

#232323 · ΔE 11.7

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

Code

CSS

background-color: #1d2237;

Tailwind (arbitrary value)

bg-[#1d2237]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#1d2237 (#1d2237) is rgb(29, 34, 55) in RGB.

No, #1d2237 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 #1d2237, or check how it holds up for accessibility.

Generate a palette → Check contrast