#131E81#131E81

#131E81 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.2% C 0.162 H 268.4°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#131E81
RGB	rgb(19, 30, 129)
HSL	hsl(234, 74%, 29%)
HSV	hsv(234, 85%, 51%)
CMYK	cmyk(85.3%, 76.7%, 0%, 49.4%)
CIE-LAB	lab(18.59, 34.35, -55.97)
CIE-LCH	lch(18.59, 65.67, 301.54°)
OKLab	oklab(31.25% -0.0046 -0.1622)
OKLCH	oklch(31.25% 0.162 268.4)
XYZ	xyz(4.6939, 2.6514, 21.0290)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131E81 #817613

analogous

#135581 #131E81 #3F1381

triadic

#131E81 #81131E #1E8113

tetradic

#131E81 #811355 #817613 #13813F

square

#131E81 #811355 #817613 #13813F

split-complementary

#131E81 #813F13 #558113

monochromatic

#04061B #0B124C #131E81 #1B2AB6 #2E40E0

Accessibility & contrast

On white

13.72

#131E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#131E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131E81

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131E81	#FFFFFF	#000000	##FFFFFF
##131E81	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003384

Deuteranopia (green-blind)

#00287F

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #131e81;
/* rgb */ color: rgb(19, 30, 129);
/* oklch */ color: oklch(31.2% 0.162 268.4);

Tailwind

colors: {
  custom: {
    50: '#685ba7',
    500: '#131e81',
    950: '#000000',
  },
}

SCSS

$custom: #131e81;
$custom-light: #685ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#131e81",
  "rgb": {
    "r": 19,
    "g": 30,
    "b": 129
  },
  "hsl": {
    "h": 234,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31246,
    "c": 0.16227,
    "h": 268.4
  },
  "luminance": 0.02652
}

Semantic roles & 50–950 ramp

primary

#131E81

secondary

#B6AA3A

accent

#DE37F1

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#070410

muted

#7A797F

Preview Lab

Preview with #131E81

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

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