#21487f

Color #21487f

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 20.87 Nearest Tailwind class sky-900 #024a70 · ΔE 6.1

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

Conversions

HEX

#21487f

RGB

rgb(33, 72, 127)

HSL

hsl(215.1, 58.8%, 31.4%)

HSV / HSB

hsv(215.1, 74%, 49.8%)

CMYK

cmyk(74%, 43.3%, 0%, 50.2%)

LAB

lab(30.62, 6.37, -35.13)

LCH

lch(30.62, 35.7, 280.28)

OKLCH

oklch(40.4%, 0.1027, 257.47)

HWB

hwb(215.1, 12.9%, 50.2%)

Harmony colors

Complementary

#7f5821

Analogous

#21777f

#21487f

#29217f

Triadic

#21487f

#7f2148

#487f21

Split-complementary

#21487f

#7f2921

#777f21

Tetradic

#21487f

#58217f

#7f5821

#487f21

Square

#21487f

#7f2177

#7f5821

#217f29

Shades

Color #21487f mixed toward black.

#1b3c6a

#163055

#102440

#0b182a

#050c15

Tints

Color #21487f mixed toward white.

#2d62ad

#467fcf

#749fdb

#a2bfe7

#d1dff3

Tones

Color #21487f mixed toward gray.

#294977

#314b6f

#394c68

#404d60

#484f58

Accessibility

Aa White text on this color

9.14:1

Aa Black text on this color

2.3:1

White text reads better on this background (9.14:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#363675 · ΔE 9.2

Deuteranopia

#343072 · ΔE 10.8

Tritanopia

#246b69 · ΔE 25.6

Achromatopsia

#484848 · ΔE 19.9

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

Code

CSS

background-color: #21487f;

Tailwind (arbitrary value)

bg-[#21487f]

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

#21487f (#21487f) is rgb(33, 72, 127) in RGB.

No, #21487f 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

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 #21487f, or check how it holds up for accessibility.

Generate a palette → Check contrast