#183D62#183D62

#183D62 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.077 H 250.9°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#183D62
RGB	rgb(24, 61, 98)
HSL	hsl(210, 61%, 24%)
HSV	hsv(210, 76%, 38%)
CMYK	cmyk(75.5%, 37.8%, 0%, 61.6%)
CIE-LAB	lab(24.99, 0.76, -25.69)
CIE-LCH	lch(24.99, 25.70, 271.70°)
OKLab	oklab(35.31% -0.0252 -0.073)
OKLCH	oklch(35.31% 0.077 250.9)
XYZ	xyz(4.2492, 4.4131, 12.1808)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D62 #623D18

analogous

#186262 #183D62 #181862

triadic

#183D62 #62183D #3D6218

tetradic

#183D62 #621862 #623D18 #186218

square

#183D62 #621862 #623D18 #186218

split-complementary

#183D62 #621818 #626218

monochromatic

#060F19 #0C1E31 #183D62 #245C93 #307AC4

Accessibility & contrast

On white

11.15

#183D62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#183D62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D62

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D62	#FFFFFF	#000000	##FFFFFF
##183D62	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3F64

Deuteranopia (green-blind)

#223861

Tritanopia (blue-blind)

#00464B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183d62;
/* rgb */ color: rgb(24, 61, 98);
/* oklch */ color: oklch(35.3% 0.077 250.9);

Tailwind

colors: {
  custom: {
    50: '#5f728f',
    500: '#183d62',
    950: '#000000',
  },
}

SCSS

$custom: #183d62;
$custom-light: #5f728f;
$custom-dark: #000000;

JSON

{
  "hex": "#183d62",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 98
  },
  "hsl": {
    "h": 210,
    "s": 60.656,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35309,
    "c": 0.07723,
    "h": 250.9
  },
  "luminance": 0.04414
}

Semantic roles & 50–950 ramp

primary

#183D62

secondary

#986B3E

accent

#9444E4

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #183D62

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

Preview Lab → · Contrast checker → · Palette generator →