#15253b

Color #15253b

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 16.86 Nearest Tailwind class slate-800 #1d293d · ΔE 1.8

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Conversions

HEX

#15253b

RGB

rgb(21, 37, 59)

HSL

hsl(214.7, 47.5%, 15.7%)

HSV / HSB

hsv(214.7, 64.4%, 23.1%)

CMYK

cmyk(64.4%, 37.3%, 0%, 76.9%)

LAB

lab(14.39, 1.29, -16.19)

LCH

lch(14.39, 16.24, 274.56)

OKLCH

oklch(26.2%, 0.0469, 256.56)

HWB

hwb(214.7, 8.2%, 76.9%)

Harmony colors

Complementary

#3b2b15

Analogous

#15383b

#15253b

#18153b

Triadic

#15253b

#3b1525

#253b15

Split-complementary

#15253b

#3b1815

#383b15

Tetradic

#15253b

#2b153b

#3b2b15

#253b15

Square

#15253b

#3b1538

#3b2b15

#153b18

Shades

Color #15253b mixed toward black.

#121f31

#0e1927

#0b131e

#070c14

#04060a

Tints

Color #15253b mixed toward white.

#284670

#3b67a5

#608cc7

#95b2d9

#cad9ec

Tones

Color #15253b mixed toward gray.

#182638

#1b2635

#1f2732

#22272e

#25282b

Accessibility

Aa White text on this color

15.44:1

Aa Black text on this color

1.36:1

White text reads better on this background (15.44:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1d1d37 · ΔE 7.7

Deuteranopia

#1c1b35 · ΔE 8.3

Tritanopia

#163332 · ΔE 16.5

Achromatopsia

#242424 · ΔE 11.9

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

Code

CSS

background-color: #15253b;

Tailwind (arbitrary value)

bg-[#15253b]

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

#15253b (#15253b) is rgb(21, 37, 59) in RGB.

No, #15253b 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 #15253b, or check how it holds up for accessibility.

Generate a palette → Check contrast