#151F2D#151F2D

#151F2D is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.7% C 0.031 H 256.9°. Best body text is #FFFFFF at 16.59:1 contrast (WCAG AA passes).

Color values

HEX	#151F2D
RGB	rgb(21, 31, 45)
HSL	hsl(215, 36%, 13%)
HSV	hsv(215, 53%, 18%)
CMYK	cmyk(53.3%, 31.1%, 0%, 82.4%)
CIE-LAB	lab(11.48, 0.30, -10.74)
CIE-LCH	lch(11.48, 10.75, 271.61°)
OKLab	oklab(23.68% -0.007 -0.0299)
OKLCH	oklch(23.68% 0.031 256.9)
XYZ	xyz(1.2727, 1.3288, 2.6715)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F2D #2D2315

analogous

#152B2D #151F2D #17152D

triadic

#151F2D #2D151F #1F2D15

tetradic

#151F2D #2D152B #2D2315 #152D17

square

#151F2D #2D152B #2D2315 #152D17

split-complementary

#151F2D #2D1715 #2B2D15

monochromatic

#0A0E15 #0A0E15 #151F2D #283C57 #3C5880

Accessibility & contrast

On white

16.59

#151F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#151F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F2D

16.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F2D	#FFFFFF	#000000	##FFFFFF
##151F2D	1.00	16.59	1.27	16.59
#FFFFFF	16.59	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A202E

Deuteranopia (green-blind)

#171D2D

Tritanopia (blue-blind)

#0C2224

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151f2d;
/* rgb */ color: rgb(21, 31, 45);
/* oklch */ color: oklch(23.7% 0.031 256.9);

Tailwind

colors: {
  custom: {
    50: '#535a66',
    500: '#151f2d',
    950: '#000000',
  },
}

SCSS

$custom: #151f2d;
$custom-light: #535a66;
$custom-dark: #000000;

JSON

{
  "hex": "#151f2d",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 45
  },
  "hsl": {
    "h": 215,
    "s": 36.364,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23683,
    "c": 0.03074,
    "h": 256.9
  },
  "luminance": 0.01329
}

Semantic roles & 50–950 ramp

primary

#151F2D

secondary

#63523B

accent

#9D5BCC

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #151F2D

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

Preview Lab → · Contrast checker → · Palette generator →