#21427a

Color #21427a

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 18.93 Nearest Tailwind class blue-900 #1c398e · ΔE 5

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Conversions

HEX

#21427a

RGB

rgb(33, 66, 122)

HSL

hsl(217.8, 57.4%, 30.4%)

HSV / HSB

hsv(217.8, 73%, 47.8%)

CMYK

cmyk(73%, 45.9%, 0%, 52.2%)

LAB

lab(28.44, 8.47, -35.47)

LCH

lch(28.44, 36.47, 283.43)

OKLCH

oklch(38.6%, 0.103, 260.27)

HWB

hwb(217.8, 12.9%, 52.2%)

Harmony colors

Complementary

#7a5921

Analogous

#216e7a

#21427a

#2d217a

Triadic

#21427a

#7a2142

#427a21

Split-complementary

#21427a

#7a2d21

#6e7a21

Tetradic

#21427a

#59217a

#7a5921

#427a21

Square

#21427a

#7a216e

#7a5921

#217a2d

Shades

Color #21427a mixed toward black.

#1c3766

#162c51

#11213d

#0b1629

#060b14

Tints

Color #21427a mixed toward white.

#2e5ba9

#4577cd

#7399d9

#a2bbe6

#d0ddf2

Tones

Color #21427a mixed toward gray.

#284473

#30466b

#374864

#3f4a5c

#464c55

Accessibility

Aa White text on this color

9.88:1

Aa Black text on this color

2.12:1

White text reads better on this background (9.88:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#323370 · ΔE 7.6

Deuteranopia

#302e6d · ΔE 8.9

Tritanopia

#236664 · ΔE 26.1

Achromatopsia

#434343 · ΔE 20.3

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

Code

CSS

background-color: #21427a;

Tailwind (arbitrary value)

bg-[#21427a]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#21427a (#21427a) is rgb(33, 66, 122) in RGB.

No, #21427a 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 #21427a, or check how it holds up for accessibility.

Generate a palette → Check contrast