#151D31#151D31

#151D31 is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.4% C 0.041 H 266.7°. Best body text is #FFFFFF at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#151D31
RGB	rgb(21, 29, 49)
HSL	hsl(223, 40%, 14%)
HSV	hsv(223, 57%, 19%)
CMYK	cmyk(57.1%, 40.8%, 0%, 80.8%)
CIE-LAB	lab(10.99, 3.32, -14.40)
CIE-LCH	lch(10.99, 14.78, 282.98°)
OKLab	oklab(23.38% -0.0023 -0.0405)
OKLCH	oklch(23.38% 0.041 266.7)
XYZ	xyz(1.3028, 1.2598, 3.0797)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D31 #312915

analogous

#152B31 #151D31 #1B1531

triadic

#151D31 #31151D #1D3115

tetradic

#151D31 #31152B #312915 #15311B

square

#151D31 #31152B #312915 #15311B

split-complementary

#151D31 #311B15 #2B3115

monochromatic

#090D15 #090D15 #151D31 #27365C #3A5087

Accessibility & contrast

On white

16.77

#151D31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#151D31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D31

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D31	#FFFFFF	#000000	##FFFFFF
##151D31	1.00	16.77	1.25	16.77
#FFFFFF	16.77	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161F32

Deuteranopia (green-blind)

#131C31

Tritanopia (blue-blind)

#0A2124

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151d31;
/* rgb */ color: rgb(21, 29, 49);
/* oklch */ color: oklch(23.4% 0.041 266.7);

Tailwind

colors: {
  custom: {
    50: '#545869',
    500: '#151d31',
    950: '#000000',
  },
}

SCSS

$custom: #151d31;
$custom-light: #545869;
$custom-dark: #000000;

JSON

{
  "hex": "#151d31",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 49
  },
  "hsl": {
    "h": 222.857,
    "s": 40,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23381,
    "c": 0.04057,
    "h": 266.7
  },
  "luminance": 0.0126
}

Semantic roles & 50–950 ramp

primary

#151D31

secondary

#685B3A

accent

#AE58D0

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#030306

muted

#78787A

Preview Lab

Preview with #151D31

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

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