#233a4b

Color #233a4b

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 7.29 Nearest Tailwind class cyan-950 #053345 · ΔE 4.8

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Conversions

HEX

#233a4b

RGB

rgb(35, 58, 75)

HSL

hsl(205.5, 36.4%, 21.6%)

HSV / HSB

hsv(205.5, 53.3%, 29.4%)

CMYK

cmyk(53.3%, 22.7%, 0%, 70.6%)

LAB

lab(23.31, -3.47, -13.19)

LCH

lch(23.31, 13.64, 255.26)

OKLCH

oklch(33.7%, 0.0417, 241.53)

HWB

hwb(205.5, 13.7%, 70.6%)

Harmony colors

Complementary

#4b3423

Analogous

#234b48

#233a4b

#23264b

Triadic

#233a4b

#4b233a

#3a4b23

Split-complementary

#233a4b

#4b2326

#4b4823

Tetradic

#233a4b

#34234b

#4b3423

#3a4b23

Square

#233a4b

#48234b

#4b3423

#264b23

Shades

Color #233a4b mixed toward black.

#1d303f

#172732

#121d26

#0c1319

#060a0d

Tints

Color #233a4b mixed toward white.

#385d79

#4d80a6

#77a0bf

#a4c0d5

#d2dfea

Tones

Color #233a4b mixed toward gray.

#263a48

#2a3944

#2d3941

#30383e

#34383a

Accessibility

Aa White text on this color

11.81:1

Aa Black text on this color

1.78:1

White text reads better on this background (11.81:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2e2f47 · ΔE 11.9

Deuteranopia

#2d2b46 · ΔE 13.9

Tritanopia

#254444 · ΔE 11.4

Achromatopsia

#383838 · ΔE 10.7

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

Code

CSS

background-color: #233a4b;

Tailwind (arbitrary value)

bg-[#233a4b]

Related colors

Charcoal #36454f

Steel Blue #4682b4

Alice Blue #f0f8ff

Light Sky Blue #87cefa

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#233a4b (#233a4b) is rgb(35, 58, 75) in RGB.

No, #233a4b 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 #233a4b, or check how it holds up for accessibility.

Generate a palette → Check contrast