#151D3A#151D3A

#151D3A is a very dark, muted blue. Relative luminance 0.013; OKLCH L 24.0% C 0.057 H 270.1°. Best body text is #FFFFFF at 16.55:1 contrast (WCAG AA passes).

Color values

HEX	#151D3A
RGB	rgb(21, 29, 58)
HSL	hsl(227, 47%, 15%)
HSV	hsv(227, 64%, 23%)
CMYK	cmyk(63.8%, 50%, 0%, 77.3%)
CIE-LAB	lab(11.58, 6.89, -19.93)
CIE-LCH	lch(11.58, 21.09, 289.07°)
OKLab	oklab(24.02% 0.0001 -0.0567)
OKLCH	oklch(24.02% 0.057 270.1)
XYZ	xyz(1.5121, 1.3435, 4.1818)
Luminance	0.0134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D3A #3A3215

analogous

#152F3A #151D3A #1F153A

triadic

#151D3A #3A151D #1D3A15

tetradic

#151D3A #3A152F #3A3215 #153A1F

square

#151D3A #3A152F #3A3215 #153A1F

split-complementary

#151D3A #3A1F15 #2F3A15

monochromatic

#080B16 #080B16 #151D3A #253367 #364A94

Accessibility & contrast

On white

16.55

#151D3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#151D3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D3A

16.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D3A	#FFFFFF	#000000	##FFFFFF
##151D3A	1.00	16.55	1.27	16.55
#FFFFFF	16.55	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11203B

Deuteranopia (green-blind)

#0C1D39

Tritanopia (blue-blind)

#032328

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #151d3a;
/* rgb */ color: rgb(21, 29, 58);
/* oklch */ color: oklch(24.0% 0.057 270.1);

Tailwind

colors: {
  custom: {
    50: '#565870',
    500: '#151d3a',
    950: '#000000',
  },
}

SCSS

$custom: #151d3a;
$custom-light: #565870;
$custom-dark: #000000;

JSON

{
  "hex": "#151d3a",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 58
  },
  "hsl": {
    "h": 227.027,
    "s": 46.835,
    "l": 15.49
  },
  "oklch": {
    "l": 0.24022,
    "c": 0.05666,
    "h": 270.1
  },
  "luminance": 0.01344
}

Semantic roles & 50–950 ramp

primary

#151D3A

secondary

#716539

accent

#BA51D6

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #151D3A

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

Preview Lab → · Contrast checker → · Palette generator →