#181A75#181A75

#181A75 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.149 H 271.6°. Best body text is #FFFFFF at 14.55:1 contrast (WCAG AA passes).

Color values

HEX	#181A75
RGB	rgb(24, 26, 117)
HSL	hsl(239, 66%, 28%)
HSV	hsv(239, 79%, 46%)
CMYK	cmyk(79.5%, 77.8%, 0%, 54.1%)
CIE-LAB	lab(16.59, 32.82, -51.61)
CIE-LCH	lch(16.59, 61.16, 302.45°)
OKLab	oklab(29.48% 0.0043 -0.1494)
OKLCH	oklch(29.48% 0.149 271.6)
XYZ	xyz(3.9559, 2.2169, 17.0456)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A75 #757318

analogous

#184875 #181A75 #451875

triadic

#181A75 #75181A #1A7518

tetradic

#181A75 #751848 #757318 #187545

square

#181A75 #751848 #757318 #187545

split-complementary

#181A75 #754518 #487518

monochromatic

#050619 #0E0F42 #181A75 #2225A8 #3236D5

Accessibility & contrast

On white

14.55

#181A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#181A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A75

14.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A75	#FFFFFF	#000000	##FFFFFF
##181A75	1.00	14.55	1.44	14.55
#FFFFFF	14.55	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E78

Deuteranopia (green-blind)

#002473

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181a75;
/* rgb */ color: rgb(24, 26, 117);
/* oklch */ color: oklch(29.5% 0.149 271.6);

Tailwind

colors: {
  custom: {
    50: '#67589e',
    500: '#181a75',
    950: '#000000',
  },
}

SCSS

$custom: #181a75;
$custom-light: #67589e;
$custom-dark: #000000;

JSON

{
  "hex": "#181a75",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 117
  },
  "hsl": {
    "h": 238.71,
    "s": 65.957,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29483,
    "c": 0.14946,
    "h": 271.6
  },
  "luminance": 0.02217
}

Semantic roles & 50–950 ramp

primary

#181A75

secondary

#AAA83F

accent

#E53FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181A75

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

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