#151D3D#151D3D

#151D3D is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.3% C 0.062 H 270.6°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#151D3D
RGB	rgb(21, 29, 61)
HSL	hsl(228, 49%, 16%)
HSV	hsv(228, 66%, 24%)
CMYK	cmyk(65.6%, 52.5%, 0%, 76.1%)
CIE-LAB	lab(11.79, 8.11, -21.72)
CIE-LCH	lch(11.79, 23.18, 290.47°)
OKLab	oklab(24.26% 0.0007 -0.0619)
OKLCH	oklch(24.26% 0.062 270.6)
XYZ	xyz(1.5907, 1.3750, 4.5955)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D3D #3D3515

analogous

#15313D #151D3D #21153D

triadic

#151D3D #3D151D #1D3D15

tetradic

#151D3D #3D1531 #3D3515 #153D21

square

#151D3D #3D1531 #3D3515 #153D21

split-complementary

#151D3D #3D2115 #313D15

monochromatic

#080B17 #080B17 #151D3D #25336B #344898

Accessibility & contrast

On white

16.47

#151D3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#151D3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D3D

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D3D	#FFFFFF	#000000	##FFFFFF
##151D3D	1.00	16.47	1.27	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E213E

Deuteranopia (green-blind)

#091D3C

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #151d3d;
/* rgb */ color: rgb(21, 29, 61);
/* oklch */ color: oklch(24.3% 0.062 270.6);

Tailwind

colors: {
  custom: {
    50: '#565873',
    500: '#151d3d',
    950: '#000000',
  },
}

SCSS

$custom: #151d3d;
$custom-light: #565873;
$custom-dark: #000000;

JSON

{
  "hex": "#151d3d",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 61
  },
  "hsl": {
    "h": 228,
    "s": 48.78,
    "l": 16.078
  },
  "oklch": {
    "l": 0.24255,
    "c": 0.06191,
    "h": 270.6
  },
  "luminance": 0.01375
}

Semantic roles & 50–950 ramp

primary

#151D3D

secondary

#756939

accent

#BD4FD8

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #151D3D

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

Preview Lab → · Contrast checker → · Palette generator →