#151F2B#151F2B

#151F2B is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.6% C 0.027 H 253.4°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#151F2B
RGB	rgb(21, 31, 43)
HSL	hsl(213, 34%, 13%)
HSV	hsv(213, 51%, 17%)
CMYK	cmyk(51.2%, 27.9%, 0%, 83.1%)
CIE-LAB	lab(11.37, -0.42, -9.45)
CIE-LCH	lch(11.37, 9.46, 267.43°)
OKLab	oklab(23.57% -0.0078 -0.0262)
OKLCH	oklch(23.57% 0.027 253.4)
XYZ	xyz(1.2352, 1.3137, 2.4735)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F2B #2B2115

analogous

#152A2B #151F2B #16152B

triadic

#151F2B #2B151F #1F2B15

tetradic

#151F2B #2B152A #2B2115 #152B16

square

#151F2B #2B152A #2B2115 #152B16

split-complementary

#151F2B #2B1615 #2A2B15

monochromatic

#0A0F15 #0A0F15 #151F2B #293D54 #3D5A7D

Accessibility & contrast

On white

16.63

#151F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#151F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F2B

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F2B	#FFFFFF	#000000	##FFFFFF
##151F2B	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1F2C

Deuteranopia (green-blind)

#181D2B

Tritanopia (blue-blind)

#0D2223

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151f2b;
/* rgb */ color: rgb(21, 31, 43);
/* oklch */ color: oklch(23.6% 0.027 253.4);

Tailwind

colors: {
  custom: {
    50: '#535a64',
    500: '#151f2b',
    950: '#000000',
  },
}

SCSS

$custom: #151f2b;
$custom-light: #535a64;
$custom-dark: #000000;

JSON

{
  "hex": "#151f2b",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 43
  },
  "hsl": {
    "h": 212.727,
    "s": 34.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.23567,
    "c": 0.02738,
    "h": 253.4
  },
  "luminance": 0.01314
}

Semantic roles & 50–950 ramp

primary

#151F2B

secondary

#61503B

accent

#995DCA

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #151F2B

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

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