#183D49#183D49

#183D49 is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.9% C 0.047 H 222.1°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#183D49
RGB	rgb(24, 61, 73)
HSL	hsl(195, 51%, 19%)
HSV	hsv(195, 67%, 29%)
CMYK	cmyk(67.1%, 16.4%, 0%, 71.4%)
CIE-LAB	lab(23.71, -8.93, -11.29)
CIE-LCH	lch(23.71, 14.39, 231.66°)
OKLab	oklab(33.88% -0.0347 -0.0314)
OKLCH	oklch(33.88% 0.047 222.1)
XYZ	xyz(3.2476, 4.0124, 6.9054)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D49 #492418

analogous

#18493D #183D49 #182549

triadic

#183D49 #49183D #3D4918

tetradic

#183D49 #3D1849 #492418 #254918

square

#183D49 #3D1849 #492418 #254918

split-complementary

#183D49 #491825 #493D18

monochromatic

#081317 #09171B #183D49 #276377 #368AA5

Accessibility & contrast

On white

11.65

#183D49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#183D49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D49

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D49	#FFFFFF	#000000	##FFFFFF
##183D49	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363B4A

Deuteranopia (green-blind)

#2F3649

Tritanopia (blue-blind)

#004141

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183d49;
/* rgb */ color: rgb(24, 61, 73);
/* oklch */ color: oklch(33.9% 0.047 222.1);

Tailwind

colors: {
  custom: {
    50: '#5b727b',
    500: '#183d49',
    950: '#000000',
  },
}

SCSS

$custom: #183d49;
$custom-light: #5b727b;
$custom-dark: #000000;

JSON

{
  "hex": "#183d49",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 73
  },
  "hsl": {
    "h": 194.694,
    "s": 50.515,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33875,
    "c": 0.04682,
    "h": 222.1
  },
  "luminance": 0.04013
}

Semantic roles & 50–950 ramp

primary

#183D49

secondary

#804D3D

accent

#704EDA

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #183D49

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

Preview Lab → · Contrast checker → · Palette generator →