#183238#183238

#183238 is a dark, muted cyan. Relative luminance 0.028; OKLCH L 29.9% C 0.034 H 214.4°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#183238
RGB	rgb(24, 50, 56)
HSL	hsl(191, 40%, 16%)
HSV	hsv(191, 57%, 22%)
CMYK	cmyk(57.1%, 10.7%, 0%, 78%)
CIE-LAB	lab(19.06, -7.96, -6.89)
CIE-LCH	lch(19.06, 10.53, 220.89°)
OKLab	oklab(29.91% -0.0278 -0.019)
OKLCH	oklch(29.91% 0.034 214.4)
XYZ	xyz(2.2308, 2.7607, 4.1559)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183238 #381E18

analogous

#18382E #183238 #182238

triadic

#183238 #381832 #323818

tetradic

#183238 #2E1838 #381E18 #223818

square

#183238 #2E1838 #381E18 #223818

split-complementary

#183238 #381822 #382E18

monochromatic

#091315 #091315 #183238 #2A5863 #3D7E8E

Accessibility & contrast

On white

13.53

#183238 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#183238 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183238

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183238	#FFFFFF	#000000	##FFFFFF
##183238	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3038

Deuteranopia (green-blind)

#292D38

Tritanopia (blue-blind)

#063434

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #183238;
/* rgb */ color: rgb(24, 50, 56);
/* oklch */ color: oklch(29.9% 0.034 214.4);

Tailwind

colors: {
  custom: {
    50: '#58696e',
    500: '#183238',
    950: '#000000',
  },
}

SCSS

$custom: #183238;
$custom-light: #58696e;
$custom-dark: #000000;

JSON

{
  "hex": "#183238",
  "rgb": {
    "r": 24,
    "g": 50,
    "b": 56
  },
  "hsl": {
    "h": 191.25,
    "s": 40,
    "l": 15.686
  },
  "oklch": {
    "l": 0.29913,
    "c": 0.03369,
    "h": 214.4
  },
  "luminance": 0.02761
}

Semantic roles & 50–950 ramp

primary

#183238

secondary

#6E473E

accent

#6E58D0

background

#F5F6F6

surface

#E9EBEB

border

#C5C6C6

text

#030607

muted

#787A7A

Preview Lab

Preview with #183238

Body copy rendered with the generated semantic roles for this colour.

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