#183C47#183C47

#183C47 is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.045 H 220.7°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#183C47
RGB	rgb(24, 60, 71)
HSL	hsl(194, 49%, 19%)
HSV	hsv(194, 66%, 28%)
CMYK	cmyk(66.2%, 15.5%, 0%, 72.2%)
CIE-LAB	lab(23.27, -9.02, -10.63)
CIE-LCH	lch(23.27, 13.94, 229.68°)
OKLab	oklab(33.49% -0.0343 -0.0295)
OKLCH	oklch(33.49% 0.045 220.7)
XYZ	xyz(3.1294, 3.8805, 6.5441)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C47 #472318

analogous

#18473A #183C47 #182447

triadic

#183C47 #47183C #3C4718

tetradic

#183C47 #3A1847 #472318 #244718

square

#183C47 #3A1847 #472318 #244718

split-complementary

#183C47 #471824 #473A18

monochromatic

#081317 #091519 #183C47 #276375 #3789A2

Accessibility & contrast

On white

11.82

#183C47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#183C47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C47

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C47	#FFFFFF	#000000	##FFFFFF
##183C47	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353A48

Deuteranopia (green-blind)

#2F3547

Tritanopia (blue-blind)

#00403F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183c47;
/* rgb */ color: rgb(24, 60, 71);
/* oklch */ color: oklch(33.5% 0.045 220.7);

Tailwind

colors: {
  custom: {
    50: '#5a717a',
    500: '#183c47',
    950: '#000000',
  },
}

SCSS

$custom: #183c47;
$custom-light: #5a717a;
$custom-dark: #000000;

JSON

{
  "hex": "#183c47",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 71
  },
  "hsl": {
    "h": 194.043,
    "s": 49.474,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33494,
    "c": 0.0453,
    "h": 220.7
  },
  "luminance": 0.03881
}

Semantic roles & 50–950 ramp

primary

#183C47

secondary

#7E4C3D

accent

#6F4FD9

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #183C47

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

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