#151B36#151B36

#151B36 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.2% C 0.053 H 272.3°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#151B36
RGB	rgb(21, 27, 54)
HSL	hsl(229, 44%, 15%)
HSV	hsv(229, 61%, 21%)
CMYK	cmyk(61.1%, 50%, 0%, 78.8%)
CIE-LAB	lab(10.63, 6.82, -18.58)
CIE-LCH	lch(10.63, 19.79, 290.14°)
OKLab	oklab(23.21% 0.0021 -0.0527)
OKLCH	oklch(23.21% 0.053 272.3)
XYZ	xyz(1.3668, 1.2095, 3.6508)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B36 #363015

analogous

#152C36 #151B36 #201536

triadic

#151B36 #36151B #1B3615

tetradic

#151B36 #36152C #363015 #153620

square

#151B36 #36152C #363015 #153620

split-complementary

#151B36 #362015 #2C3615

monochromatic

#090B16 #090B16 #151B36 #263162 #37478E

Accessibility & contrast

On white

16.91

#151B36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#151B36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B36

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B36	#FFFFFF	#000000	##FFFFFF
##151B36	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101E37

Deuteranopia (green-blind)

#0C1B35

Tritanopia (blue-blind)

#072125

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151b36;
/* rgb */ color: rgb(21, 27, 54);
/* oklch */ color: oklch(23.2% 0.053 272.3);

Tailwind

colors: {
  custom: {
    50: '#55576d',
    500: '#151b36',
    950: '#000000',
  },
}

SCSS

$custom: #151b36;
$custom-light: #55576d;
$custom-dark: #000000;

JSON

{
  "hex": "#151b36",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 54
  },
  "hsl": {
    "h": 229.091,
    "s": 44,
    "l": 14.706
  },
  "oklch": {
    "l": 0.23205,
    "c": 0.05276,
    "h": 272.3
  },
  "luminance": 0.0121
}

Semantic roles & 50–950 ramp

primary

#151B36

secondary

#6D643A

accent

#BD54D4

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030307

muted

#78787A

Preview Lab

Preview with #151B36

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

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