#151C2A#151C2A

#151C2A is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.7% C 0.029 H 263.7°. Best body text is #FFFFFF at 17.05:1 contrast (WCAG AA passes).

Color values

HEX	#151C2A
RGB	rgb(21, 28, 42)
HSL	hsl(220, 33%, 12%)
HSV	hsv(220, 50%, 16%)
CMYK	cmyk(50%, 33.3%, 0%, 83.5%)
CIE-LAB	lab(10.24, 1.44, -10.47)
CIE-LCH	lch(10.24, 10.57, 277.84°)
OKLab	oklab(22.66% -0.0032 -0.0292)
OKLCH	oklch(22.66% 0.029 263.7)
XYZ	xyz(1.1423, 1.1570, 2.3532)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C2A #2A2315

analogous

#15272A #151C2A #19152A

triadic

#151C2A #2A151C #1C2A15

tetradic

#151C2A #2A1527 #2A2315 #152A19

square

#151C2A #2A1527 #2A2315 #152A19

split-complementary

#151C2A #2A1915 #272A15

monochromatic

#0A0E14 #0A0E14 #151C2A #293753 #3E527C

Accessibility & contrast

On white

17.05

#151C2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#151C2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C2A

17.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C2A	#FFFFFF	#000000	##FFFFFF
##151C2A	1.00	17.05	1.23	17.05
#FFFFFF	17.05	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171D2B

Deuteranopia (green-blind)

#151B2A

Tritanopia (blue-blind)

#0E1F21

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #151c2a;
/* rgb */ color: rgb(21, 28, 42);
/* oklch */ color: oklch(22.7% 0.029 263.7);

Tailwind

colors: {
  custom: {
    50: '#535763',
    500: '#151c2a',
    950: '#000000',
  },
}

SCSS

$custom: #151c2a;
$custom-light: #535763;
$custom-dark: #000000;

JSON

{
  "hex": "#151c2a",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 42
  },
  "hsl": {
    "h": 220,
    "s": 33.333,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22662,
    "c": 0.02935,
    "h": 263.7
  },
  "luminance": 0.01157
}

Semantic roles & 50–950 ramp

primary

#151C2A

secondary

#5F533B

accent

#A65EC9

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #151C2A

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

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