#303a40

Color #303a40

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 5.5 Nearest Tailwind class mist-700 #394447 · ΔE 3.8

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

Conversions

HEX

#303a40

RGB

rgb(48, 58, 64)

HSL

hsl(202.5, 14.3%, 22%)

HSV / HSB

hsv(202.5, 25%, 25.1%)

CMYK

cmyk(25%, 9.4%, 0%, 74.9%)

LAB

lab(23.75, -2.55, -5.09)

LCH

lch(23.75, 5.69, 243.39)

OKLCH

oklch(34.2%, 0.017, 234.34)

HWB

hwb(202.5, 18.8%, 74.9%)

Harmony colors

Complementary

#403630

Analogous

#30403e

#303a40

#303240

Triadic

#303a40

#40303a

#3a4030

Split-complementary

#303a40

#403032

#403e30

Tetradic

#303a40

#363040

#403630

#3a4030

Square

#303a40

#3e3040

#403630

#324030

Shades

Color #303a40 mixed toward black.

#283035

#20272b

#181d20

#101315

#080a0b

Tints

Color #303a40 mixed toward white.

#4c5c66

#697f8c

#8d9faa

#b3bfc6

#d9dfe3

Tones

Color #303a40 mixed toward gray.

#313a3f

#33393d

#34393c

#35393b

#373839

Accessibility

Aa White text on this color

11.63:1

Aa Black text on this color

1.8:1

White text reads better on this background (11.63:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#35353f · ΔE 7

Deuteranopia

#34333e · ΔE 8.1

Tritanopia

#313d3d · ΔE 4.4

Achromatopsia

#393939 · ΔE 5.6

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

Code

CSS

background-color: #303a40;

Tailwind (arbitrary value)

bg-[#303a40]

Related colors

Light Sky Blue #87cefa

Charcoal #36454f

Steel Blue #4682b4

Sky Blue #87ceeb

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Frequently asked questions

#303a40 (#303a40) is rgb(48, 58, 64) in RGB.

No, #303a40 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.

Try it →

Build something with this color

Generate a full palette from #303a40, or check how it holds up for accessibility.

Generate a palette → Check contrast