#151B44#151B44

#151B44 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.4% C 0.077 H 273.1°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#151B44
RGB	rgb(21, 27, 68)
HSL	hsl(232, 53%, 17%)
HSV	hsv(232, 69%, 27%)
CMYK	cmyk(69.1%, 60.3%, 0%, 73.3%)
CIE-LAB	lab(11.69, 12.52, -26.80)
CIE-LCH	lch(11.69, 29.58, 295.04°)
OKLab	oklab(24.36% 0.0041 -0.0769)
OKLCH	oklch(24.36% 0.077 273.1)
XYZ	xyz(1.7442, 1.3605, 5.6384)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B44 #443E15

analogous

#153344 #151B44 #261544

triadic

#151B44 #44151B #1B4415

tetradic

#151B44 #441533 #443E15 #154426

square

#151B44 #441533 #443E15 #154426

split-complementary

#151B44 #442615 #334415

monochromatic

#070917 #070917 #151B44 #232E73 #3240A2

Accessibility & contrast

On white

16.51

#151B44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#151B44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B44

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B44	#FFFFFF	#000000	##FFFFFF
##151B44	1.00	16.51	1.27	16.51
#FFFFFF	16.51	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032145

Deuteranopia (green-blind)

#001D43

Tritanopia (blue-blind)

#00252C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #151b44;
/* rgb */ color: rgb(21, 27, 68);
/* oklch */ color: oklch(24.4% 0.077 273.1);

Tailwind

colors: {
  custom: {
    50: '#585778',
    500: '#151b44',
    950: '#000000',
  },
}

SCSS

$custom: #151b44;
$custom-light: #585778;
$custom-dark: #000000;

JSON

{
  "hex": "#151b44",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 68
  },
  "hsl": {
    "h": 232.34,
    "s": 52.809,
    "l": 17.451
  },
  "oklch": {
    "l": 0.24355,
    "c": 0.07699,
    "h": 273.1
  },
  "luminance": 0.01361
}

Semantic roles & 50–950 ramp

primary

#151B44

secondary

#7C7339

accent

#CA4CDC

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #151B44

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

Preview Lab → · Contrast checker → · Palette generator →