#151A2D#151A2D

#151A2D is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.3% C 0.038 H 271.8°. Best body text is #FFFFFF at 17.25:1 contrast (WCAG AA passes).

Color values

HEX	#151A2D
RGB	rgb(21, 26, 45)
HSL	hsl(228, 36%, 13%)
HSV	hsv(228, 53%, 18%)
CMYK	cmyk(53.3%, 42.2%, 0%, 82.4%)
CIE-LAB	lab(9.70, 4.08, -13.51)
CIE-LCH	lch(9.70, 14.11, 286.80°)
OKLab	oklab(22.3% 0.0012 -0.0379)
OKLCH	oklch(22.3% 0.038 271.8)
XYZ	xyz(1.1522, 1.0876, 2.6313)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151A2D #2D2815

analogous

#15262D #151A2D #1C152D

triadic

#151A2D #2D151A #1A2D15

tetradic

#151A2D #2D1526 #2D2815 #152D1C

square

#151A2D #2D1526 #2D2815 #152D1C

split-complementary

#151A2D #2D1C15 #262D15

monochromatic

#0A0C15 #0A0C15 #151A2D #283257 #3C4A80

Accessibility & contrast

On white

17.25

#151A2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#151A2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151A2D

17.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151A2D	#FFFFFF	#000000	##FFFFFF
##151A2D	1.00	17.25	1.22	17.25
#FFFFFF	17.25	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131C2E

Deuteranopia (green-blind)

#111A2D

Tritanopia (blue-blind)

#0D1E21

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #151a2d;
/* rgb */ color: rgb(21, 26, 45);
/* oklch */ color: oklch(22.3% 0.038 271.8);

Tailwind

colors: {
  custom: {
    50: '#545666',
    500: '#151a2d',
    950: '#000000',
  },
}

SCSS

$custom: #151a2d;
$custom-light: #545666;
$custom-dark: #000000;

JSON

{
  "hex": "#151a2d",
  "rgb": {
    "r": 21,
    "g": 26,
    "b": 45
  },
  "hsl": {
    "h": 227.5,
    "s": 36.364,
    "l": 12.941
  },
  "oklch": {
    "l": 0.22302,
    "c": 0.03796,
    "h": 271.8
  },
  "luminance": 0.01088
}

Semantic roles & 50–950 ramp

primary

#151A2D

secondary

#635B3B

accent

#B55BCC

background

#F4F5F6

surface

#E7E8EB

border

#C3C4C6

text

#020305

muted

#78787A

Preview Lab

Preview with #151A2D

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

Preview Lab → · Contrast checker → · Palette generator →