#183E52#183E52

#183E52 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.055 H 234.5°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#183E52
RGB	rgb(24, 62, 82)
HSL	hsl(201, 55%, 21%)
HSV	hsv(201, 71%, 32%)
CMYK	cmyk(70.7%, 24.4%, 0%, 67.8%)
CIE-LAB	lab(24.48, -6.21, -16.06)
CIE-LCH	lch(24.48, 17.22, 248.85°)
OKLab	oklab(34.62% -0.0321 -0.045)
OKLCH	oklch(34.62% 0.055 234.5)
XYZ	xyz(3.6217, 4.2483, 8.6101)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E52 #522C18

analogous

#185249 #183E52 #182152

triadic

#183E52 #52183E #3E5218

tetradic

#183E52 #491852 #522C18 #215218

square

#183E52 #491852 #522C18 #215218

split-complementary

#183E52 #521821 #524918

monochromatic

#071218 #0A1A23 #183E52 #266281 #3486B1

Accessibility & contrast

On white

11.35

#183E52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#183E52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E52

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E52	#FFFFFF	#000000	##FFFFFF
##183E52	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343D53

Deuteranopia (green-blind)

#2C3852

Tritanopia (blue-blind)

#004345

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183e52;
/* rgb */ color: rgb(24, 62, 82);
/* oklch */ color: oklch(34.6% 0.055 234.5);

Tailwind

colors: {
  custom: {
    50: '#5c7382',
    500: '#183e52',
    950: '#000000',
  },
}

SCSS

$custom: #183e52;
$custom-light: #5c7382;
$custom-dark: #000000;

JSON

{
  "hex": "#183e52",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 82
  },
  "hsl": {
    "h": 200.69,
    "s": 54.717,
    "l": 20.784
  },
  "oklch": {
    "l": 0.34621,
    "c": 0.05528,
    "h": 234.5
  },
  "luminance": 0.04249
}

Semantic roles & 50–950 ramp

primary

#183E52

secondary

#89573D

accent

#7D4ADE

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #183E52

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

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