#131B61#131B61

#131B61 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.1% C 0.122 H 270.4°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#131B61
RGB	rgb(19, 27, 97)
HSL	hsl(234, 67%, 23%)
HSV	hsv(234, 80%, 38%)
CMYK	cmyk(80.4%, 72.2%, 0%, 62%)
CIE-LAB	lab(14.32, 24.07, -42.28)
CIE-LCH	lch(14.32, 48.65, 299.65°)
OKLab	oklab(27.11% 0.0008 -0.1223)
OKLCH	oklch(27.11% 0.122 270.4)
XYZ	xyz(2.8174, 1.7851, 11.5030)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B61 #615913

analogous

#134261 #131B61 #321361

triadic

#131B61 #61131B #1B6113

tetradic

#131B61 #611342 #615913 #136132

square

#131B61 #611342 #615913 #136132

split-complementary

#131B61 #613213 #426113

monochromatic

#05071A #090D2E #131B61 #1D2994 #2737C7

Accessibility & contrast

On white

15.48

#131B61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#131B61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B61

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B61	#FFFFFF	#000000	##FFFFFF
##131B61	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002863

Deuteranopia (green-blind)

#002160

Tritanopia (blue-blind)

#002E3B

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131b61;
/* rgb */ color: rgb(19, 27, 97);
/* oklch */ color: oklch(27.1% 0.122 270.4);

Tailwind

colors: {
  custom: {
    50: '#5f578f',
    500: '#131b61',
    950: '#000000',
  },
}

SCSS

$custom: #131b61;
$custom-light: #5f578f;
$custom-dark: #000000;

JSON

{
  "hex": "#131b61",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 97
  },
  "hsl": {
    "h": 233.846,
    "s": 67.241,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27111,
    "c": 0.12234,
    "h": 270.4
  },
  "luminance": 0.01785
}

Semantic roles & 50–950 ramp

primary

#131B61

secondary

#998F37

accent

#D83EEA

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #131B61

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

Preview Lab → · Contrast checker → · Palette generator →