#181A79#181A79

#181A79 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.155 H 271.3°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#181A79
RGB	rgb(24, 26, 121)
HSL	hsl(239, 67%, 28%)
HSV	hsv(239, 80%, 47%)
CMYK	cmyk(80.2%, 78.5%, 0%, 52.5%)
CIE-LAB	lab(17.05, 34.25, -53.41)
CIE-LCH	lch(17.05, 63.45, 302.67°)
OKLab	oklab(29.95% 0.0035 -0.1546)
OKLCH	oklch(29.95% 0.155 271.3)
XYZ	xyz(4.1961, 2.3130, 18.3108)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A79 #797718

analogous

#184A79 #181A79 #461879

triadic

#181A79 #79181A #1A7918

tetradic

#181A79 #79184A #797718 #187946

square

#181A79 #79184A #797718 #187946

split-complementary

#181A79 #794618 #4A7918

monochromatic

#05051A #0E0F46 #181A79 #2225AC #3538D7

Accessibility & contrast

On white

14.36

#181A79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#181A79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A79

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A79	#FFFFFF	#000000	##FFFFFF
##181A79	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7C

Deuteranopia (green-blind)

#002577

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181a79;
/* rgb */ color: rgb(24, 26, 121);
/* oklch */ color: oklch(29.9% 0.155 271.3);

Tailwind

colors: {
  custom: {
    50: '#6858a1',
    500: '#181a79',
    950: '#000000',
  },
}

SCSS

$custom: #181a79;
$custom-light: #6858a1;
$custom-dark: #000000;

JSON

{
  "hex": "#181a79",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 121
  },
  "hsl": {
    "h": 238.763,
    "s": 66.897,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29949,
    "c": 0.15468,
    "h": 271.3
  },
  "luminance": 0.02313
}

Semantic roles & 50–950 ramp

primary

#181A79

secondary

#AEAC3F

accent

#E63EEA

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181A79

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

Preview Lab → · Contrast checker → · Palette generator →