#151F3C#151F3C

#151F3C is a very dark, muted blue. Relative luminance 0.015; OKLCH L 24.7% C 0.057 H 267.8°. Best body text is #FFFFFF at 16.24:1 contrast (WCAG AA passes).

Color values

HEX	#151F3C
RGB	rgb(21, 31, 60)
HSL	hsl(225, 48%, 16%)
HSV	hsv(225, 65%, 24%)
CMYK	cmyk(65%, 48.3%, 0%, 76.5%)
CIE-LAB	lab(12.39, 6.17, -20.06)
CIE-LCH	lch(12.39, 20.99, 287.11°)
OKLab	oklab(24.69% -0.0022 -0.057)
OKLCH	oklch(24.69% 0.057 267.8)
XYZ	xyz(1.6146, 1.4655, 4.4719)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F3C #3C3215

analogous

#15323C #151F3C #1E153C

triadic

#151F3C #3C151F #1F3C15

tetradic

#151F3C #3C1532 #3C3215 #153C1E

square

#151F3C #3C1532 #3C3215 #153C1E

split-complementary

#151F3C #3C1E15 #323C15

monochromatic

#080C17 #080C17 #151F3C #253669 #354E97

Accessibility & contrast

On white

16.24

#151F3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#151F3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F3C

16.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F3C	#FFFFFF	#000000	##FFFFFF
##151F3C	1.00	16.24	1.29	16.24
#FFFFFF	16.24	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13223D

Deuteranopia (green-blind)

#0E1F3B

Tritanopia (blue-blind)

#01252A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #151f3c;
/* rgb */ color: rgb(21, 31, 60);
/* oklch */ color: oklch(24.7% 0.057 267.8);

Tailwind

colors: {
  custom: {
    50: '#565a72',
    500: '#151f3c',
    950: '#000000',
  },
}

SCSS

$custom: #151f3c;
$custom-light: #565a72;
$custom-dark: #000000;

JSON

{
  "hex": "#151f3c",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 60
  },
  "hsl": {
    "h": 224.615,
    "s": 48.148,
    "l": 15.882
  },
  "oklch": {
    "l": 0.24689,
    "c": 0.05705,
    "h": 267.8
  },
  "luminance": 0.01466
}

Semantic roles & 50–950 ramp

primary

#151F3C

secondary

#746539

accent

#B550D8

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #151F3C

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

Preview Lab → · Contrast checker → · Palette generator →