#131D2F#131D2F

#131D2F is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.1% C 0.038 H 261.6°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#131D2F
RGB	rgb(19, 29, 47)
HSL	hsl(219, 42%, 13%)
HSV	hsv(219, 60%, 18%)
CMYK	cmyk(59.6%, 38.3%, 0%, 81.6%)
CIE-LAB	lab(10.72, 1.92, -13.38)
CIE-LCH	lch(10.72, 13.52, 278.16°)
OKLab	oklab(23.09% -0.0055 -0.0376)
OKLCH	oklch(23.09% 0.038 261.6)
XYZ	xyz(1.2208, 1.2223, 2.8604)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D2F #2F2513

analogous

#132B2F #131D2F #17132F

triadic

#131D2F #2F131D #1D2F13

tetradic

#131D2F #2F132B #2F2513 #132F17

square

#131D2F #2F132B #2F2513 #132F17

split-complementary

#131D2F #2F1713 #2B2F13

monochromatic

#090D16 #090D16 #131D2F #25385B #365386

Accessibility & contrast

On white

16.88

#131D2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#131D2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D2F

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D2F	#FFFFFF	#000000	##FFFFFF
##131D2F	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161E30

Deuteranopia (green-blind)

#131C2F

Tritanopia (blue-blind)

#072123

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131d2f;
/* rgb */ color: rgb(19, 29, 47);
/* oklch */ color: oklch(23.1% 0.038 261.6);

Tailwind

colors: {
  custom: {
    50: '#535867',
    500: '#131d2f',
    950: '#000000',
  },
}

SCSS

$custom: #131d2f;
$custom-light: #535867;
$custom-dark: #000000;

JSON

{
  "hex": "#131d2f",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 47
  },
  "hsl": {
    "h": 218.571,
    "s": 42.424,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23091,
    "c": 0.038,
    "h": 261.6
  },
  "luminance": 0.01222
}

Semantic roles & 50–950 ramp

primary

#131D2F

secondary

#665637

accent

#A656D2

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #131D2F

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

Preview Lab → · Contrast checker → · Palette generator →