#151F3D#151F3D

#151F3D is a very dark, muted blue. Relative luminance 0.015; OKLCH L 24.8% C 0.059 H 268.1°. Best body text is #FFFFFF at 16.21:1 contrast (WCAG AA passes).

Color values

HEX	#151F3D
RGB	rgb(21, 31, 61)
HSL	hsl(225, 49%, 16%)
HSV	hsv(225, 66%, 24%)
CMYK	cmyk(65.6%, 49.2%, 0%, 76.1%)
CIE-LAB	lab(12.46, 6.58, -20.66)
CIE-LCH	lch(12.46, 21.68, 287.67°)
OKLab	oklab(24.76% -0.002 -0.0588)
OKLCH	oklch(24.76% 0.059 268.1)
XYZ	xyz(1.6413, 1.4762, 4.6124)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F3D #3D3315

analogous

#15333D #151F3D #1F153D

triadic

#151F3D #3D151F #1F3D15

tetradic

#151F3D #3D1533 #3D3315 #153D1F

square

#151F3D #3D1533 #3D3315 #153D1F

split-complementary

#151F3D #3D1F15 #333D15

monochromatic

#080C17 #080C17 #151F3D #25366B #344D98

Accessibility & contrast

On white

16.21

#151F3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#151F3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F3D

16.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F3D	#FFFFFF	#000000	##FFFFFF
##151F3D	1.00	16.21	1.30	16.21
#FFFFFF	16.21	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12223E

Deuteranopia (green-blind)

#0D1F3C

Tritanopia (blue-blind)

#00262B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #151f3d;
/* rgb */ color: rgb(21, 31, 61);
/* oklch */ color: oklch(24.8% 0.059 268.1);

Tailwind

colors: {
  custom: {
    50: '#565a72',
    500: '#151f3d',
    950: '#000000',
  },
}

SCSS

$custom: #151f3d;
$custom-light: #565a72;
$custom-dark: #000000;

JSON

{
  "hex": "#151f3d",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 61
  },
  "hsl": {
    "h": 225,
    "s": 48.78,
    "l": 16.078
  },
  "oklch": {
    "l": 0.24764,
    "c": 0.05879,
    "h": 268.1
  },
  "luminance": 0.01476
}

Semantic roles & 50–950 ramp

primary

#151F3D

secondary

#756639

accent

#B64FD8

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #151F3D

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

Preview Lab → · Contrast checker → · Palette generator →