#183A41#183A41

#183A41 is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.6% C 0.041 H 212.9°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#183A41
RGB	rgb(24, 58, 65)
HSL	hsl(190, 46%, 17%)
HSV	hsv(190, 63%, 25%)
CMYK	cmyk(63.1%, 10.8%, 0%, 74.5%)
CIE-LAB	lab(22.31, -9.90, -8.09)
CIE-LCH	lch(22.31, 12.79, 219.23°)
OKLab	oklab(32.64% -0.0345 -0.0224)
OKLCH	oklch(32.64% 0.041 212.9)
XYZ	xyz(2.8435, 3.6017, 5.5453)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A41 #411F18

analogous

#184134 #183A41 #182641

triadic

#183A41 #41183A #3A4118

tetradic

#183A41 #341841 #411F18 #264118

square

#183A41 #341841 #411F18 #264118

split-complementary

#183A41 #411826 #413418

monochromatic

#081416 #081416 #183A41 #29626E #398A9A

Accessibility & contrast

On white

12.21

#183A41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#183A41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A41

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A41	#FFFFFF	#000000	##FFFFFF
##183A41	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353841

Deuteranopia (green-blind)

#2E3341

Tritanopia (blue-blind)

#003D3C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #183a41;
/* rgb */ color: rgb(24, 58, 65);
/* oklch */ color: oklch(32.6% 0.041 212.9);

Tailwind

colors: {
  custom: {
    50: '#597075',
    500: '#183a41',
    950: '#000000',
  },
}

SCSS

$custom: #183a41;
$custom-light: #597075;
$custom-dark: #000000;

JSON

{
  "hex": "#183a41",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 65
  },
  "hsl": {
    "h": 190.244,
    "s": 46.067,
    "l": 17.451
  },
  "oklch": {
    "l": 0.32638,
    "c": 0.04116,
    "h": 212.9
  },
  "luminance": 0.03602
}

Semantic roles & 50–950 ramp

primary

#183A41

secondary

#78473D

accent

#6952D6

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040708

muted

#797A7B

Preview Lab

Preview with #183A41

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

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