#251d4d

Color #251d4d

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 22.64 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 1.7

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

Conversions

HEX

#251d4d

RGB

rgb(37, 29, 77)

HSL

hsl(250, 45.3%, 20.8%)

HSV / HSB

hsv(250, 62.3%, 30.2%)

CMYK

cmyk(51.9%, 62.3%, 0%, 69.8%)

LAB

lab(14.44, 18.29, -28.52)

LCH

lch(14.44, 33.88, 302.67)

OKLCH

oklch(27%, 0.0851, 286.88)

HWB

hwb(250, 11.4%, 69.8%)

Harmony colors

Complementary

#454d1d

Analogous

#1d2d4d

#251d4d

#3d1d4d

Triadic

#251d4d

#4d251d

#1d4d25

Split-complementary

#251d4d

#4d3d1d

#2d4d1d

Tetradic

#251d4d

#4d1d45

#454d1d

#1d4d25

Square

#251d4d

#4d1d2d

#454d1d

#1d4d3d

Shades

Color #251d4d mixed toward black.

#1f1840

#191333

#130f27

#0c0a1a

#06050d

Tints

Color #251d4d mixed toward white.

#3d2f7e

#5442af

#7c6cc8

#a79dda

#d3ceed

Tones

Color #251d4d mixed toward gray.

#282149

#2a2545

#2d2941

#302d3d

#323139

Accessibility

Aa White text on this color

15.42:1

Aa Black text on this color

1.36:1

White text reads better on this background (15.42:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#222245 · ΔE 4.2

Deuteranopia

#222343 · ΔE 5.2

Tritanopia

#253d3c · ΔE 24.7

Achromatopsia

#252525 · ΔE 20.5

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

Code

CSS

background-color: #251d4d;

Tailwind (arbitrary value)

bg-[#251d4d]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#251d4d (#251d4d) is rgb(37, 29, 77) in RGB.

No, #251d4d 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 #251d4d, or check how it holds up for accessibility.

Generate a palette → Check contrast