#151A2B#151A2B

#151A2B is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.2% C 0.034 H 270.9°. Best body text is #FFFFFF at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#151A2B
RGB	rgb(21, 26, 43)
HSL	hsl(226, 34%, 13%)
HSV	hsv(226, 51%, 17%)
CMYK	cmyk(51.2%, 39.5%, 0%, 83.1%)
CIE-LAB	lab(9.58, 3.33, -12.23)
CIE-LCH	lch(9.58, 12.67, 285.23°)
OKLab	oklab(22.17% 0.0005 -0.0342)
OKLCH	oklch(22.17% 0.034 270.9)
XYZ	xyz(1.1146, 1.0726, 2.4333)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151A2B #2B2615

analogous

#15252B #151A2B #1B152B

triadic

#151A2B #2B151A #1A2B15

tetradic

#151A2B #2B1525 #2B2615 #152B1B

square

#151A2B #2B1525 #2B2615 #152B1B

split-complementary

#151A2B #2B1B15 #252B15

monochromatic

#0A0C15 #0A0C15 #151A2B #293354 #3D4C7D

Accessibility & contrast

On white

17.29

#151A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#151A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151A2B

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151A2B	#FFFFFF	#000000	##FFFFFF
##151A2B	1.00	17.29	1.21	17.29
#FFFFFF	17.29	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141C2C

Deuteranopia (green-blind)

#121A2B

Tritanopia (blue-blind)

#0E1D20

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #151a2b;
/* rgb */ color: rgb(21, 26, 43);
/* oklch */ color: oklch(22.2% 0.034 270.9);

Tailwind

colors: {
  custom: {
    50: '#535664',
    500: '#151a2b',
    950: '#000000',
  },
}

SCSS

$custom: #151a2b;
$custom-light: #535664;
$custom-dark: #000000;

JSON

{
  "hex": "#151a2b",
  "rgb": {
    "r": 21,
    "g": 26,
    "b": 43
  },
  "hsl": {
    "h": 226.364,
    "s": 34.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22171,
    "c": 0.03422,
    "h": 270.9
  },
  "luminance": 0.01073
}

Semantic roles & 50–950 ramp

primary

#151A2B

secondary

#61583B

accent

#B25DCA

background

#F4F5F6

surface

#E7E8EB

border

#C3C4C6

text

#020305

muted

#78787A

Preview Lab

Preview with #151A2B

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

Preview Lab → · Contrast checker → · Palette generator →