#183340

Color #183340

A moderately saturated very dark cyan.

Closest named color Charcoal #36454f · ΔE 9.57 Nearest Tailwind class cyan-950 #053345 · ΔE 2.7

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

Conversions

HEX

#183340

RGB

rgb(24, 51, 64)

HSL

hsl(199.5, 45.5%, 17.3%)

HSV / HSB

hsv(199.5, 62.5%, 25.1%)

CMYK

cmyk(62.5%, 20.3%, 0%, 74.9%)

LAB

lab(19.77, -5.76, -11.28)

LCH

lch(19.77, 12.67, 242.95)

OKLCH

oklch(30.6%, 0.0405, 230.92)

HWB

hwb(199.5, 9.4%, 74.9%)

Harmony colors

Complementary

#402518

Analogous

#184039

#183340

#181f40

Triadic

#183340

#401833

#334018

Split-complementary

#183340

#40181f

#403918

Tetradic

#183340

#251840

#402518

#334018

Square

#183340

#391840

#402518

#1f4018

Shades

Color #183340 mixed toward black.

#142b35

#10222b

#0c1a20

#081115

#04090b

Tints

Color #183340 mixed toward white.

#2b5c73

#3e85a6

#66a6c6

#99c4d9

#cce1ec

Tones

Color #183340 mixed toward gray.

#1b323d

#1f3139

#223036

#252e33

#292d2f

Accessibility

Aa White text on this color

13.24:1

Aa Black text on this color

1.59:1

White text reads better on this background (13.24:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#26263d · ΔE 15

Deuteranopia

#25223c · ΔE 17

Tritanopia

#1a3b3a · ΔE 9.6

Achromatopsia

#303030 · ΔE 10.8

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

Code

CSS

background-color: #183340;

Tailwind (arbitrary value)

bg-[#183340]

Related colors

Sky Blue #87ceeb

Light Sky Blue #87cefa

Deep Sky Blue #00bfff

Charcoal #36454f

Light Blue #add8e6

Steel Blue #4682b4

Frequently asked questions

#183340 (#183340) is rgb(24, 51, 64) in RGB.

No, #183340 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.

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 #183340, or check how it holds up for accessibility.

Generate a palette → Check contrast