#181878#181878

#181878 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.155 H 271.7°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#181878
RGB	rgb(24, 24, 120)
HSL	hsl(240, 67%, 28%)
HSV	hsv(240, 80%, 47%)
CMYK	cmyk(80%, 80%, 0%, 52.9%)
CIE-LAB	lab(16.52, 35.08, -53.65)
CIE-LCH	lch(16.52, 64.10, 303.18°)
OKLab	oklab(29.54% 0.0045 -0.1553)
OKLCH	oklch(29.54% 0.155 271.7)
XYZ	xyz(4.0923, 2.2031, 17.9752)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181878 #787818

analogous

#184878 #181878 #481878

triadic

#181878 #781818 #187818

tetradic

#181878 #781848 #787818 #187848

square

#181878 #781848 #787818 #187848

split-complementary

#181878 #784818 #487818

monochromatic

#05051A #0E0E45 #181878 #2222AB #3434D6

Accessibility & contrast

On white

14.58

#181878 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#181878 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181878

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181878	#FFFFFF	#000000	##FFFFFF
##181878	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7B

Deuteranopia (green-blind)

#002476

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181878;
/* rgb */ color: rgb(24, 24, 120);
/* oklch */ color: oklch(29.5% 0.155 271.7);

Tailwind

colors: {
  custom: {
    50: '#6857a0',
    500: '#181878',
    950: '#000000',
  },
}

SCSS

$custom: #181878;
$custom-light: #6857a0;
$custom-dark: #000000;

JSON

{
  "hex": "#181878",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 120
  },
  "hsl": {
    "h": 240,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29538,
    "c": 0.15538,
    "h": 271.7
  },
  "luminance": 0.02204
}

Semantic roles & 50–950 ramp

primary

#181878

secondary

#ADAD3F

accent

#EA3EEA

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181878

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

Preview Lab → · Contrast checker → · Palette generator →