#151C2C#151C2C

#151C2C is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.8% C 0.033 H 265.7°. Best body text is #FFFFFF at 17.01:1 contrast (WCAG AA passes).

Color values

HEX	#151C2C
RGB	rgb(21, 28, 44)
HSL	hsl(222, 35%, 13%)
HSV	hsv(222, 52%, 17%)
CMYK	cmyk(52.3%, 36.4%, 0%, 82.7%)
CIE-LAB	lab(10.35, 2.18, -11.77)
CIE-LCH	lch(10.35, 11.97, 280.49°)
OKLab	oklab(22.78% -0.0024 -0.0329)
OKLCH	oklch(22.78% 0.033 265.7)
XYZ	xyz(1.1790, 1.1717, 2.5464)
Luminance	0.0117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C2C #2C2515

analogous

#15272C #151C2C #19152C

triadic

#151C2C #2C151C #1C2C15

tetradic

#151C2C #2C1527 #2C2515 #152C19

square

#151C2C #2C1527 #2C2515 #152C19

split-complementary

#151C2C #2C1915 #272C15

monochromatic

#0A0D15 #0A0D15 #151C2C #293655 #3D517F

Accessibility & contrast

On white

17.01

#151C2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#151C2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C2C

17.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C2C	#FFFFFF	#000000	##FFFFFF
##151C2C	1.00	17.01	1.23	17.01
#FFFFFF	17.01	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161D2D

Deuteranopia (green-blind)

#141B2C

Tritanopia (blue-blind)

#0D1F22

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #151c2c;
/* rgb */ color: rgb(21, 28, 44);
/* oklch */ color: oklch(22.8% 0.033 265.7);

Tailwind

colors: {
  custom: {
    50: '#535765',
    500: '#151c2c',
    950: '#000000',
  },
}

SCSS

$custom: #151c2c;
$custom-light: #535765;
$custom-dark: #000000;

JSON

{
  "hex": "#151c2c",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 44
  },
  "hsl": {
    "h": 221.739,
    "s": 35.385,
    "l": 12.745
  },
  "oklch": {
    "l": 0.22784,
    "c": 0.03298,
    "h": 265.7
  },
  "luminance": 0.01172
}

Semantic roles & 50–950 ramp

primary

#151C2C

secondary

#62563B

accent

#AA5CCB

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #151C2C

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

Preview Lab → · Contrast checker → · Palette generator →