#151F2C#151F2C

#151F2C is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.6% C 0.029 H 255.2°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#151F2C
RGB	rgb(21, 31, 44)
HSL	hsl(214, 35%, 13%)
HSV	hsv(214, 52%, 17%)
CMYK	cmyk(52.3%, 29.5%, 0%, 82.7%)
CIE-LAB	lab(11.42, -0.06, -10.10)
CIE-LCH	lch(11.42, 10.10, 269.63°)
OKLab	oklab(23.63% -0.0074 -0.0281)
OKLCH	oklch(23.63% 0.029 255.2)
XYZ	xyz(1.2537, 1.3212, 2.5713)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F2C #2C2215

analogous

#152A2C #151F2C #16152C

triadic

#151F2C #2C151F #1F2C15

tetradic

#151F2C #2C152A #2C2215 #152C16

square

#151F2C #2C152A #2C2215 #152C16

split-complementary

#151F2C #2C1615 #2A2C15

monochromatic

#0A0F15 #0A0F15 #151F2C #293C55 #3D597F

Accessibility & contrast

On white

16.61

#151F2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#151F2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F2C

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F2C	#FFFFFF	#000000	##FFFFFF
##151F2C	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A202D

Deuteranopia (green-blind)

#171D2C

Tritanopia (blue-blind)

#0D2223

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151f2c;
/* rgb */ color: rgb(21, 31, 44);
/* oklch */ color: oklch(23.6% 0.029 255.2);

Tailwind

colors: {
  custom: {
    50: '#535a65',
    500: '#151f2c',
    950: '#000000',
  },
}

SCSS

$custom: #151f2c;
$custom-light: #535a65;
$custom-dark: #000000;

JSON

{
  "hex": "#151f2c",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 44
  },
  "hsl": {
    "h": 213.913,
    "s": 35.385,
    "l": 12.745
  },
  "oklch": {
    "l": 0.23625,
    "c": 0.02906,
    "h": 255.2
  },
  "luminance": 0.01321
}

Semantic roles & 50–950 ramp

primary

#151F2C

secondary

#62513B

accent

#9B5CCB

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #151F2C

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

Preview Lab → · Contrast checker → · Palette generator →