#151D2A#151D2A

#151D2A is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.9% C 0.028 H 259.9°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#151D2A
RGB	rgb(21, 29, 42)
HSL	hsl(217, 33%, 12%)
HSV	hsv(217, 50%, 16%)
CMYK	cmyk(50%, 31%, 0%, 83.5%)
CIE-LAB	lab(10.60, 0.69, -9.92)
CIE-LCH	lch(10.60, 9.94, 273.98°)
OKLab	oklab(22.94% -0.0049 -0.0276)
OKLCH	oklch(22.94% 0.028 259.9)
XYZ	xyz(1.1664, 1.2053, 2.3612)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D2A #2A2215

analogous

#15282A #151D2A #18152A

triadic

#151D2A #2A151D #1D2A15

tetradic

#151D2A #2A1528 #2A2215 #152A18

square

#151D2A #2A1528 #2A2215 #152A18

split-complementary

#151D2A #2A1815 #282A15

monochromatic

#0A0E14 #0A0E14 #151D2A #293953 #3E557C

Accessibility & contrast

On white

16.92

#151D2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#151D2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D2A

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D2A	#FFFFFF	#000000	##FFFFFF
##151D2A	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181E2B

Deuteranopia (green-blind)

#161C2A

Tritanopia (blue-blind)

#0E2021

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151d2a;
/* rgb */ color: rgb(21, 29, 42);
/* oklch */ color: oklch(22.9% 0.028 259.9);

Tailwind

colors: {
  custom: {
    50: '#535863',
    500: '#151d2a',
    950: '#000000',
  },
}

SCSS

$custom: #151d2a;
$custom-light: #535863;
$custom-dark: #000000;

JSON

{
  "hex": "#151d2a",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 42
  },
  "hsl": {
    "h": 217.143,
    "s": 33.333,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22942,
    "c": 0.028,
    "h": 259.9
  },
  "luminance": 0.01205
}

Semantic roles & 50–950 ramp

primary

#151D2A

secondary

#5F523B

accent

#A15EC9

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #151D2A

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

Preview Lab → · Contrast checker → · Palette generator →