#151F2A#151F2A

#151F2A is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.5% C 0.026 H 251.3°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#151F2A
RGB	rgb(21, 31, 42)
HSL	hsl(211, 33%, 12%)
HSV	hsv(211, 50%, 16%)
CMYK	cmyk(50%, 26.2%, 0%, 83.5%)
CIE-LAB	lab(11.32, -0.79, -8.80)
CIE-LCH	lch(11.32, 8.84, 264.88°)
OKLab	oklab(23.51% -0.0082 -0.0244)
OKLCH	oklch(23.51% 0.026 251.3)
XYZ	xyz(1.2170, 1.3065, 2.3781)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F2A #2A2015

analogous

#15292A #151F2A #16152A

triadic

#151F2A #2A151F #1F2A15

tetradic

#151F2A #2A1529 #2A2015 #152A16

square

#151F2A #2A1529 #2A2015 #152A16

split-complementary

#151F2A #2A1615 #292A15

monochromatic

#0A0F14 #0A0F14 #151F2A #293D53 #3E5B7C

Accessibility & contrast

On white

16.65

#151F2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#151F2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F2A

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F2A	#FFFFFF	#000000	##FFFFFF
##151F2A	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1F2B

Deuteranopia (green-blind)

#181D2A

Tritanopia (blue-blind)

#0E2123

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151f2a;
/* rgb */ color: rgb(21, 31, 42);
/* oklch */ color: oklch(23.5% 0.026 251.3);

Tailwind

colors: {
  custom: {
    50: '#535a63',
    500: '#151f2a',
    950: '#000000',
  },
}

SCSS

$custom: #151f2a;
$custom-light: #535a63;
$custom-dark: #000000;

JSON

{
  "hex": "#151f2a",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 42
  },
  "hsl": {
    "h": 211.429,
    "s": 33.333,
    "l": 12.353
  },
  "oklch": {
    "l": 0.23511,
    "c": 0.02575,
    "h": 251.3
  },
  "luminance": 0.01307
}

Semantic roles & 50–950 ramp

primary

#151F2A

secondary

#5F4E3B

accent

#965EC9

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #151F2A

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

Preview Lab → · Contrast checker → · Palette generator →