#131A3D#131A3D

#131A3D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.4% C 0.067 H 271.7°. Best body text is #FFFFFF at 16.90:1 contrast (WCAG AA passes).

Color values

HEX	#131A3D
RGB	rgb(19, 26, 61)
HSL	hsl(230, 53%, 16%)
HSV	hsv(230, 69%, 24%)
CMYK	cmyk(68.9%, 57.4%, 0%, 76.1%)
CIE-LAB	lab(10.66, 9.94, -23.54)
CIE-LCH	lch(10.66, 25.55, 292.90°)
OKLab	oklab(23.36% 0.002 -0.0673)
OKLCH	oklch(23.36% 0.067 271.7)
XYZ	xyz(1.4800, 1.2140, 4.5703)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131A3D #3D3613

analogous

#132F3D #131A3D #21133D

triadic

#131A3D #3D131A #1A3D13

tetradic

#131A3D #3D132F #3D3613 #133D21

square

#131A3D #3D132F #3D3613 #133D21

split-complementary

#131A3D #3D2113 #2F3D13

monochromatic

#070A17 #070A17 #131A3D #222E6C #30429A

Accessibility & contrast

On white

16.90

#131A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#131A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131A3D

16.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131A3D	#FFFFFF	#000000	##FFFFFF
##131A3D	1.00	16.90	1.24	16.90
#FFFFFF	16.90	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081F3E

Deuteranopia (green-blind)

#021B3C

Tritanopia (blue-blind)

#002228

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131a3d;
/* rgb */ color: rgb(19, 26, 61);
/* oklch */ color: oklch(23.4% 0.067 271.7);

Tailwind

colors: {
  custom: {
    50: '#565673',
    500: '#131a3d',
    950: '#000000',
  },
}

SCSS

$custom: #131a3d;
$custom-light: #565673;
$custom-dark: #000000;

JSON

{
  "hex": "#131a3d",
  "rgb": {
    "r": 19,
    "g": 26,
    "b": 61
  },
  "hsl": {
    "h": 230,
    "s": 52.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.23357,
    "c": 0.06738,
    "h": 271.7
  },
  "luminance": 0.01214
}

Semantic roles & 50–950 ramp

primary

#131A3D

secondary

#756B36

accent

#C44CDC

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131A3D

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

Preview Lab → · Contrast checker → · Palette generator →