#151F31#151F31

#151F31 is a very dark, muted blue. Relative luminance 0.014; OKLCH L 23.9% C 0.038 H 261.7°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#151F31
RGB	rgb(21, 31, 49)
HSL	hsl(219, 40%, 14%)
HSV	hsv(219, 57%, 19%)
CMYK	cmyk(57.1%, 36.7%, 0%, 80.8%)
CIE-LAB	lab(11.70, 1.81, -13.30)
CIE-LCH	lch(11.70, 13.42, 277.75°)
OKLab	oklab(23.93% -0.0055 -0.0373)
OKLCH	oklch(23.93% 0.038 261.7)
XYZ	xyz(1.3534, 1.3611, 3.0965)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F31 #312715

analogous

#152D31 #151F31 #191531

triadic

#151F31 #31151F #1F3115

tetradic

#151F31 #31152D #312715 #153119

square

#151F31 #31152D #312715 #153119

split-complementary

#151F31 #311915 #2D3115

monochromatic

#090E15 #090E15 #151F31 #273A5C #3A5587

Accessibility & contrast

On white

16.51

#151F31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#151F31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F31

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F31	#FFFFFF	#000000	##FFFFFF
##151F31	1.00	16.51	1.27	16.51
#FFFFFF	16.51	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182032

Deuteranopia (green-blind)

#151E31

Tritanopia (blue-blind)

#092325

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #151f31;
/* rgb */ color: rgb(21, 31, 49);
/* oklch */ color: oklch(23.9% 0.038 261.7);

Tailwind

colors: {
  custom: {
    50: '#545a69',
    500: '#151f31',
    950: '#000000',
  },
}

SCSS

$custom: #151f31;
$custom-light: #545a69;
$custom-dark: #000000;

JSON

{
  "hex": "#151f31",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 49
  },
  "hsl": {
    "h": 218.571,
    "s": 40,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23928,
    "c": 0.03769,
    "h": 261.7
  },
  "luminance": 0.01361
}

Semantic roles & 50–950 ramp

primary

#151F31

secondary

#68573A

accent

#A558D0

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#030306

muted

#78787A

Preview Lab

Preview with #151F31

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

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