#151D39#151D39

#151D39 is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.9% C 0.055 H 269.9°. Best body text is #FFFFFF at 16.58:1 contrast (WCAG AA passes).

Color values

HEX	#151D39
RGB	rgb(21, 29, 57)
HSL	hsl(227, 46%, 15%)
HSV	hsv(227, 63%, 22%)
CMYK	cmyk(63.2%, 49.1%, 0%, 77.6%)
CIE-LAB	lab(11.51, 6.48, -19.33)
CIE-LCH	lch(11.51, 20.39, 288.54°)
OKLab	oklab(23.95% -0.0001 -0.0549)
OKLCH	oklch(23.95% 0.055 269.9)
XYZ	xyz(1.4869, 1.3335, 4.0491)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D39 #393115

analogous

#152F39 #151D39 #1F1539

triadic

#151D39 #39151D #1D3915

tetradic

#151D39 #39152F #393115 #15391F

square

#151D39 #39152F #393115 #15391F

split-complementary

#151D39 #391F15 #2F3915

monochromatic

#080B16 #080B16 #151D39 #253466 #364B92

Accessibility & contrast

On white

16.58

#151D39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#151D39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D39

16.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D39	#FFFFFF	#000000	##FFFFFF
##151D39	1.00	16.58	1.27	16.58
#FFFFFF	16.58	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11203A

Deuteranopia (green-blind)

#0D1D38

Tritanopia (blue-blind)

#042328

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151d39;
/* rgb */ color: rgb(21, 29, 57);
/* oklch */ color: oklch(23.9% 0.055 269.9);

Tailwind

colors: {
  custom: {
    50: '#56586f',
    500: '#151d39',
    950: '#000000',
  },
}

SCSS

$custom: #151d39;
$custom-light: #56586f;
$custom-dark: #000000;

JSON

{
  "hex": "#151d39",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 57
  },
  "hsl": {
    "h": 226.667,
    "s": 46.154,
    "l": 15.294
  },
  "oklch": {
    "l": 0.23947,
    "c": 0.05489,
    "h": 269.9
  },
  "luminance": 0.01334
}

Semantic roles & 50–950 ramp

primary

#151D39

secondary

#706439

accent

#B952D6

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #151D39

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

Preview Lab → · Contrast checker → · Palette generator →