#151E2B#151E2B

#151E2B is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.3% C 0.029 H 257.5°. Best body text is #FFFFFF at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#151E2B
RGB	rgb(21, 30, 43)
HSL	hsl(215, 34%, 13%)
HSV	hsv(215, 51%, 17%)
CMYK	cmyk(51.2%, 30.2%, 0%, 83.1%)
CIE-LAB	lab(11.01, 0.31, -10.01)
CIE-LCH	lch(11.01, 10.02, 271.78°)
OKLab	oklab(23.28% -0.0062 -0.0278)
OKLCH	oklch(23.28% 0.029 257.5)
XYZ	xyz(1.2094, 1.2623, 2.4650)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151E2B #2B2215

analogous

#15292B #151E2B #17152B

triadic

#151E2B #2B151E #1E2B15

tetradic

#151E2B #2B1529 #2B2215 #152B17

square

#151E2B #2B1529 #2B2215 #152B17

split-complementary

#151E2B #2B1715 #292B15

monochromatic

#0A0E15 #0A0E15 #151E2B #293B54 #3D577D

Accessibility & contrast

On white

16.77

#151E2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#151E2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151E2B

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151E2B	#FFFFFF	#000000	##FFFFFF
##151E2B	1.00	16.77	1.25	16.77
#FFFFFF	16.77	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191F2C

Deuteranopia (green-blind)

#171D2B

Tritanopia (blue-blind)

#0D2122

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151e2b;
/* rgb */ color: rgb(21, 30, 43);
/* oklch */ color: oklch(23.3% 0.029 257.5);

Tailwind

colors: {
  custom: {
    50: '#535964',
    500: '#151e2b',
    950: '#000000',
  },
}

SCSS

$custom: #151e2b;
$custom-light: #535964;
$custom-dark: #000000;

JSON

{
  "hex": "#151e2b",
  "rgb": {
    "r": 21,
    "g": 30,
    "b": 43
  },
  "hsl": {
    "h": 215.455,
    "s": 34.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.23283,
    "c": 0.02851,
    "h": 257.5
  },
  "luminance": 0.01262
}

Semantic roles & 50–950 ramp

primary

#151E2B

secondary

#61513B

accent

#9E5DCA

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #151E2B

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

Preview Lab → · Contrast checker → · Palette generator →