#151A81#151A81

#151A81 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.166 H 269.5°. Best body text is #FFFFFF at 14.03:1 contrast (WCAG AA passes).

Color values

HEX	#151A81
RGB	rgb(21, 26, 129)
HSL	hsl(237, 72%, 29%)
HSV	hsv(237, 84%, 51%)
CMYK	cmyk(83.7%, 79.8%, 0%, 49.4%)
CIE-LAB	lab(17.84, 36.87, -57.21)
CIE-LCH	lch(17.84, 68.06, 302.80°)
OKLab	oklab(30.74% -0.0014 -0.1657)
OKLCH	oklch(30.74% 0.166 269.5)
XYZ	xyz(4.6397, 2.4827, 20.9993)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151A81 #817C15

analogous

#155081 #151A81 #461581

triadic

#151A81 #81151A #1A8115

tetradic

#151A81 #811550 #817C15 #158146

square

#151A81 #811550 #817C15 #158146

split-complementary

#151A81 #814615 #508115

monochromatic

#04051A #0C0F4C #151A81 #1E25B6 #333BDE

Accessibility & contrast

On white

14.03

#151A81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#151A81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151A81

14.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151A81	#FFFFFF	#000000	##FFFFFF
##151A81	1.00	14.03	1.50	14.03
#FFFFFF	14.03	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003184

Deuteranopia (green-blind)

#00267F

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #151a81;
/* rgb */ color: rgb(21, 26, 129);
/* oklch */ color: oklch(30.7% 0.166 269.5);

Tailwind

colors: {
  custom: {
    50: '#6958a7',
    500: '#151a81',
    950: '#000000',
  },
}

SCSS

$custom: #151a81;
$custom-light: #6958a7;
$custom-dark: #000000;

JSON

{
  "hex": "#151a81",
  "rgb": {
    "r": 21,
    "g": 26,
    "b": 129
  },
  "hsl": {
    "h": 237.222,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.3074,
    "c": 0.16573,
    "h": 269.5
  },
  "luminance": 0.02483
}

Semantic roles & 50–950 ramp

primary

#151A81

secondary

#B6B03C

accent

#E639EF

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080310

muted

#7A787F

Preview Lab

Preview with #151A81

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

Preview Lab → · Contrast checker → · Palette generator →