#304b5e

Color #304b5e

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 6.83 Nearest Tailwind class cyan-900 #104e64 · ΔE 5.6

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Conversions

HEX

#304b5e

RGB

rgb(48, 75, 94)

HSL

hsl(204.8, 32.4%, 27.8%)

HSV / HSB

hsv(204.8, 48.9%, 36.9%)

CMYK

cmyk(48.9%, 20.2%, 0%, 63.1%)

LAB

lab(30.56, -4.37, -14.34)

LCH

lch(30.56, 14.99, 253.05)

OKLCH

oklch(40%, 0.0459, 240.08)

HWB

hwb(204.8, 18.8%, 63.1%)

Harmony colors

Complementary

#5e4330

Analogous

#305e5a

#304b5e

#30345e

Triadic

#304b5e

#5e304b

#4b5e30

Split-complementary

#304b5e

#5e3034

#5e5a30

Tetradic

#304b5e

#43305e

#5e4330

#4b5e30

Square

#304b5e

#5a305e

#5e4330

#345e30

Shades

Color #304b5e mixed toward black.

#283e4e

#20323f

#18252f

#10191f

#080c10

Tints

Color #304b5e mixed toward white.

#456b86

#5c8bac

#85a8c1

#aec5d6

#d6e2ea

Tones

Color #304b5e mixed toward gray.

#344a5a

#384a56

#3b4952

#3f484f

#43484b

Accessibility

Aa White text on this color

9.16:1

Aa Black text on this color

2.29:1

White text reads better on this background (9.16:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3d3e5a · ΔE 13.2

Deuteranopia

#3c3a59 · ΔE 14.8

Tritanopia

#325656 · ΔE 11.9

Achromatopsia

#484848 · ΔE 11.6

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

Code

CSS

background-color: #304b5e;

Tailwind (arbitrary value)

bg-[#304b5e]

Related colors

Charcoal #36454f

Light Sky Blue #87cefa

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#304b5e (#304b5e) is rgb(48, 75, 94) in RGB.

No, #304b5e 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.

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 #304b5e, or check how it holds up for accessibility.

Generate a palette → Check contrast