#151D2D#151D2D

#151D2D is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.1% C 0.033 H 263.6°. Best body text is #FFFFFF at 16.86:1 contrast (WCAG AA passes).

Color values

HEX	#151D2D
RGB	rgb(21, 29, 45)
HSL	hsl(220, 36%, 13%)
HSV	hsv(220, 53%, 18%)
CMYK	cmyk(53.3%, 35.6%, 0%, 82.4%)
CIE-LAB	lab(10.76, 1.79, -11.86)
CIE-LCH	lch(10.76, 11.99, 278.61°)
OKLab	oklab(23.12% -0.0037 -0.0331)
OKLCH	oklch(23.12% 0.033 263.6)
XYZ	xyz(1.2221, 1.2276, 2.6547)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D2D #2D2515

analogous

#15292D #151D2D #19152D

triadic

#151D2D #2D151D #1D2D15

tetradic

#151D2D #2D1529 #2D2515 #152D19

square

#151D2D #2D1529 #2D2515 #152D19

split-complementary

#151D2D #2D1915 #292D15

monochromatic

#0A0D15 #0A0D15 #151D2D #283857 #3C5380

Accessibility & contrast

On white

16.86

#151D2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#151D2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D2D

16.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D2D	#FFFFFF	#000000	##FFFFFF
##151D2D	1.00	16.86	1.25	16.86
#FFFFFF	16.86	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171E2E

Deuteranopia (green-blind)

#151C2D

Tritanopia (blue-blind)

#0C2023

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151d2d;
/* rgb */ color: rgb(21, 29, 45);
/* oklch */ color: oklch(23.1% 0.033 263.6);

Tailwind

colors: {
  custom: {
    50: '#535866',
    500: '#151d2d',
    950: '#000000',
  },
}

SCSS

$custom: #151d2d;
$custom-light: #535866;
$custom-dark: #000000;

JSON

{
  "hex": "#151d2d",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 45
  },
  "hsl": {
    "h": 220,
    "s": 36.364,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23123,
    "c": 0.03336,
    "h": 263.6
  },
  "luminance": 0.01228
}

Semantic roles & 50–950 ramp

primary

#151D2D

secondary

#63563B

accent

#A75BCC

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #151D2D

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

Preview Lab → · Contrast checker → · Palette generator →