#181B62#181B62

#181B62 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.5% C 0.122 H 273.2°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).

Color values

HEX	#181B62
RGB	rgb(24, 27, 98)
HSL	hsl(238, 61%, 24%)
HSV	hsv(238, 76%, 38%)
CMYK	cmyk(75.5%, 72.4%, 0%, 61.6%)
CIE-LAB	lab(14.73, 25.06, -42.25)
CIE-LCH	lch(14.73, 49.12, 300.68°)
OKLab	oklab(27.53% 0.0067 -0.1221)
OKLCH	oklch(27.53% 0.122 273.2)
XYZ	xyz(2.9725, 1.8596, 11.7552)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181B62 #625F18

analogous

#184062 #181B62 #3A1862

triadic

#181B62 #62181B #1B6218

tetradic

#181B62 #621840 #625F18 #18623A

square

#181B62 #621840 #625F18 #18623A

split-complementary

#181B62 #623A18 #406218

monochromatic

#060719 #0C0D31 #181B62 #242993 #3036C4

Accessibility & contrast

On white

15.31

#181B62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#181B62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181B62

15.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181B62	#FFFFFF	#000000	##FFFFFF
##181B62	1.00	15.31	1.37	15.31
#FFFFFF	15.31	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002964

Deuteranopia (green-blind)

#002261

Tritanopia (blue-blind)

#002E3C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #181b62;
/* rgb */ color: rgb(24, 27, 98);
/* oklch */ color: oklch(27.5% 0.122 273.2);

Tailwind

colors: {
  custom: {
    50: '#61578f',
    500: '#181b62',
    950: '#000000',
  },
}

SCSS

$custom: #181b62;
$custom-light: #61578f;
$custom-dark: #000000;

JSON

{
  "hex": "#181b62",
  "rgb": {
    "r": 24,
    "g": 27,
    "b": 98
  },
  "hsl": {
    "h": 237.568,
    "s": 60.656,
    "l": 23.922
  },
  "oklch": {
    "l": 0.27528,
    "c": 0.12231,
    "h": 273.2
  },
  "luminance": 0.0186
}

Semantic roles & 50–950 ramp

primary

#181B62

secondary

#98953E

accent

#DD44E4

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #181B62

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

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