#131D2D#131D2D

#131D2D is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.0% C 0.034 H 259.5°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#131D2D
RGB	rgb(19, 29, 45)
HSL	hsl(217, 41%, 13%)
HSV	hsv(217, 58%, 18%)
CMYK	cmyk(57.8%, 35.6%, 0%, 82.4%)
CIE-LAB	lab(10.61, 1.14, -12.11)
CIE-LCH	lch(10.61, 12.16, 275.38°)
OKLab	oklab(22.96% -0.0063 -0.0339)
OKLCH	oklch(22.96% 0.034 259.5)
XYZ	xyz(1.1814, 1.2066, 2.6527)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D2D #2D2313

analogous

#132A2D #131D2D #16132D

triadic

#131D2D #2D131D #1D2D13

tetradic

#131D2D #2D132A #2D2313 #132D16

square

#131D2D #2D132A #2D2313 #132D16

split-complementary

#131D2D #2D1613 #2A2D13

monochromatic

#090E16 #090E16 #131D2D #253958 #375483

Accessibility & contrast

On white

16.92

#131D2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#131D2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D2D

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D2D	#FFFFFF	#000000	##FFFFFF
##131D2D	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171E2E

Deuteranopia (green-blind)

#141C2D

Tritanopia (blue-blind)

#082023

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131d2d;
/* rgb */ color: rgb(19, 29, 45);
/* oklch */ color: oklch(23.0% 0.034 259.5);

Tailwind

colors: {
  custom: {
    50: '#525866',
    500: '#131d2d',
    950: '#000000',
  },
}

SCSS

$custom: #131d2d;
$custom-light: #525866;
$custom-dark: #000000;

JSON

{
  "hex": "#131d2d",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 45
  },
  "hsl": {
    "h": 216.923,
    "s": 40.625,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22963,
    "c": 0.03448,
    "h": 259.5
  },
  "luminance": 0.01207
}

Semantic roles & 50–950 ramp

primary

#131D2D

secondary

#645338

accent

#A257D0

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #131D2D

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

Preview Lab → · Contrast checker → · Palette generator →