#181877#181877

#181877 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.154 H 271.8°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#181877
RGB	rgb(24, 24, 119)
HSL	hsl(240, 66%, 28%)
HSV	hsv(240, 80%, 47%)
CMYK	cmyk(79.8%, 79.8%, 0%, 53.3%)
CIE-LAB	lab(16.40, 34.73, -53.20)
CIE-LCH	lch(16.40, 63.53, 303.13°)
OKLab	oklab(29.42% 0.0047 -0.154)
OKLCH	oklch(29.42% 0.154 271.8)
XYZ	xyz(4.0320, 2.1789, 17.6573)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181877 #777718

analogous

#184777 #181877 #471877

triadic

#181877 #771818 #187718

tetradic

#181877 #771847 #777718 #187747

square

#181877 #771847 #777718 #187747

split-complementary

#181877 #774718 #477718

monochromatic

#050519 #0E0E44 #181877 #2222AA #3333D6

Accessibility & contrast

On white

14.63

#181877 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#181877 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181877

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181877	#FFFFFF	#000000	##FFFFFF
##181877	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7A

Deuteranopia (green-blind)

#002475

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181877;
/* rgb */ color: rgb(24, 24, 119);
/* oklch */ color: oklch(29.4% 0.154 271.8);

Tailwind

colors: {
  custom: {
    50: '#68569f',
    500: '#181877',
    950: '#000000',
  },
}

SCSS

$custom: #181877;
$custom-light: #68569f;
$custom-dark: #000000;

JSON

{
  "hex": "#181877",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 119
  },
  "hsl": {
    "h": 240,
    "s": 66.434,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29419,
    "c": 0.15409,
    "h": 271.8
  },
  "luminance": 0.02179
}

Semantic roles & 50–950 ramp

primary

#181877

secondary

#ACAC3F

accent

#E93EE9

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #181877

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

Preview Lab → · Contrast checker → · Palette generator →