#181F74#181F74

#181F74 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.143 H 270.8°. Best body text is #FFFFFF at 14.12:1 contrast (WCAG AA passes).

Color values

HEX	#181F74
RGB	rgb(24, 31, 116)
HSL	hsl(235, 66%, 27%)
HSV	hsv(235, 79%, 45%)
CMYK	cmyk(79.3%, 73.3%, 0%, 54.5%)
CIE-LAB	lab(17.62, 29.26, -49.26)
CIE-LCH	lch(17.62, 57.29, 300.71°)
OKLab	oklab(30.19% 0.0019 -0.1426)
OKLCH	oklch(30.19% 0.143 270.8)
XYZ	xyz(4.0180, 2.4347, 16.7778)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F74 #746D18

analogous

#184D74 #181F74 #3F1874

triadic

#181F74 #74181F #1F7418

tetradic

#181F74 #74184D #746D18 #18743F

square

#181F74 #74184D #746D18 #18743F

split-complementary

#181F74 #743F18 #4D7418

monochromatic

#050719 #0E1141 #181F74 #222DA7 #323ED5

Accessibility & contrast

On white

14.12

#181F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#181F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F74

14.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F74	#FFFFFF	#000000	##FFFFFF
##181F74	1.00	14.12	1.49	14.12
#FFFFFF	14.12	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003077

Deuteranopia (green-blind)

#002772

Tritanopia (blue-blind)

#003747

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181f74;
/* rgb */ color: rgb(24, 31, 116);
/* oklch */ color: oklch(30.2% 0.143 270.8);

Tailwind

colors: {
  custom: {
    50: '#665b9d',
    500: '#181f74',
    950: '#000000',
  },
}

SCSS

$custom: #181f74;
$custom-light: #665b9d;
$custom-dark: #000000;

JSON

{
  "hex": "#181f74",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 116
  },
  "hsl": {
    "h": 235.435,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30189,
    "c": 0.14259,
    "h": 270.8
  },
  "luminance": 0.02435
}

Semantic roles & 50–950 ramp

primary

#181F74

secondary

#A9A13F

accent

#DC3FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #181F74

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

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