#131155#131155

#131155 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.0% C 0.117 H 274.3°. Best body text is #FFFFFF at 16.95:1 contrast (WCAG AA passes).

Color values

HEX	#131155
RGB	rgb(19, 17, 85)
HSL	hsl(242, 67%, 20%)
HSV	hsv(242, 80%, 33%)
CMYK	cmyk(77.6%, 80%, 0%, 66.7%)
CIE-LAB	lab(10.52, 26.17, -40.46)
CIE-LCH	lch(10.52, 48.18, 302.90°)
OKLab	oklab(23.98% 0.0088 -0.117)
OKLCH	oklch(23.98% 0.117 274.3)
XYZ	xyz(2.1082, 1.1950, 8.7121)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131155 #535511

analogous

#113155 #131155 #351155

triadic

#131155 #551311 #115513

tetradic

#131155 #551131 #535511 #115535

square

#131155 #551131 #535511 #115535

split-complementary

#131155 #553511 #315511

monochromatic

#06051A #080722 #131155 #1E1B88 #2A25BB

Accessibility & contrast

On white

16.95

#131155 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#131155 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131155

16.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131155	#FFFFFF	#000000	##FFFFFF
##131155	1.00	16.95	1.24	16.95
#FFFFFF	16.95	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002057

Deuteranopia (green-blind)

#001954

Tritanopia (blue-blind)

#002532

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131155;
/* rgb */ color: rgb(19, 17, 85);
/* oklch */ color: oklch(24.0% 0.117 274.3);

Tailwind

colors: {
  custom: {
    50: '#5d5086',
    500: '#131155',
    950: '#000000',
  },
}

SCSS

$custom: #131155;
$custom-light: #5d5086;
$custom-dark: #000000;

JSON

{
  "hex": "#131155",
  "rgb": {
    "r": 19,
    "g": 17,
    "b": 85
  },
  "hsl": {
    "h": 241.765,
    "s": 66.667,
    "l": 20
  },
  "oklch": {
    "l": 0.23981,
    "c": 0.11734,
    "h": 274.3
  },
  "luminance": 0.01195
}

Semantic roles & 50–950 ramp

primary

#131155

secondary

#8B8E34

accent

#EA3EE5

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #131155

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

Preview Lab → · Contrast checker → · Palette generator →