#151D81#151D81

#151D81 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.163 H 269.2°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#151D81
RGB	rgb(21, 29, 129)
HSL	hsl(236, 72%, 29%)
HSV	hsv(236, 84%, 51%)
CMYK	cmyk(83.7%, 77.5%, 0%, 49.4%)
CIE-LAB	lab(18.46, 35.10, -56.17)
CIE-LCH	lch(18.46, 66.24, 302.00°)
OKLab	oklab(31.18% -0.0023 -0.1628)
OKLCH	oklch(31.18% 0.163 269.2)
XYZ	xyz(4.7097, 2.6226, 21.0226)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D81 #817915

analogous

#155381 #151D81 #431581

triadic

#151D81 #81151D #1D8115

tetradic

#151D81 #811553 #817915 #158143

square

#151D81 #811553 #817915 #158143

split-complementary

#151D81 #814315 #538115

monochromatic

#04061A #0C114C #151D81 #1E29B6 #333FDE

Accessibility & contrast

On white

13.77

#151D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#151D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D81

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D81	#FFFFFF	#000000	##FFFFFF
##151D81	1.00	13.77	1.52	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003284

Deuteranopia (green-blind)

#00287F

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #151d81;
/* rgb */ color: rgb(21, 29, 129);
/* oklch */ color: oklch(31.2% 0.163 269.2);

Tailwind

colors: {
  custom: {
    50: '#695aa7',
    500: '#151d81',
    950: '#000000',
  },
}

SCSS

$custom: #151d81;
$custom-light: #695aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#151d81",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 129
  },
  "hsl": {
    "h": 235.556,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31182,
    "c": 0.16278,
    "h": 269.2
  },
  "luminance": 0.02623
}

Semantic roles & 50–950 ramp

primary

#151D81

secondary

#B6AD3C

accent

#E139EF

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080410

muted

#7A797F

Preview Lab

Preview with #151D81

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

Preview Lab → · Contrast checker → · Palette generator →