#131D7E#131D7E

#131D7E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.159 H 268.6°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#131D7E
RGB	rgb(19, 29, 126)
HSL	hsl(234, 74%, 28%)
HSV	hsv(234, 85%, 49%)
CMYK	cmyk(84.9%, 77%, 0%, 50.6%)
CIE-LAB	lab(18.02, 33.86, -55.00)
CIE-LCH	lch(18.02, 64.59, 301.62°)
OKLab	oklab(30.74% -0.0038 -0.1594)
OKLCH	oklch(30.74% 0.159 268.6)
XYZ	xyz(4.4725, 2.5230, 19.9859)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D7E #7E7413

analogous

#13527E #131D7E #3F137E

triadic

#131D7E #7E131D #1D7E13

tetradic

#131D7E #7E1352 #7E7413 #137E3F

square

#131D7E #7E1352 #7E7413 #137E3F

split-complementary

#131D7E #7E3F13 #527E13

monochromatic

#04061B #0B1149 #131D7E #1B29B3 #2C3DDF

Accessibility & contrast

On white

13.96

#131D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#131D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D7E

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D7E	#FFFFFF	#000000	##FFFFFF
##131D7E	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#00277C

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #131d7e;
/* rgb */ color: rgb(19, 29, 126);
/* oklch */ color: oklch(30.7% 0.159 268.6);

Tailwind

colors: {
  custom: {
    50: '#685aa5',
    500: '#131d7e',
    950: '#000000',
  },
}

SCSS

$custom: #131d7e;
$custom-light: #685aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#131d7e",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 126
  },
  "hsl": {
    "h": 234.393,
    "s": 73.793,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30739,
    "c": 0.15944,
    "h": 268.6
  },
  "luminance": 0.02524
}

Semantic roles & 50–950 ramp

primary

#131D7E

secondary

#B4A839

accent

#DF37F0

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #131D7E

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

Preview Lab → · Contrast checker → · Palette generator →