#31328A#31328A

#31328A is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.4% C 0.143 H 276.5°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#31328A
RGB	rgb(49, 50, 138)
HSL	hsl(239, 48%, 37%)
HSV	hsv(239, 64%, 54%)
CMYK	cmyk(64.5%, 63.8%, 0%, 45.9%)
CIE-LAB	lab(26.07, 28.20, -49.27)
CIE-LCH	lch(26.07, 56.77, 299.78°)
OKLab	oklab(37.41% 0.0162 -0.1419)
OKLCH	oklch(37.41% 0.143 276.5)
XYZ	xyz(6.9932, 4.7686, 24.5917)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31328A #8A8931

analogous

#315F8A #31328A #5D318A

triadic

#31328A #8A3132 #328A31

tetradic

#31328A #8A315F #8A8931 #318A5D

square

#31328A #8A315F #8A8931 #318A5D

split-complementary

#31328A #8A5D31 #5F8A31

monochromatic

#111130 #21225D #31328A #4142B7 #6B6CCA

Accessibility & contrast

On white

10.75

#31328A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#31328A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31328A

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31328A	#FFFFFF	#000000	##FFFFFF
##31328A	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428D

Deuteranopia (green-blind)

#003A88

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #31328a;
/* rgb */ color: rgb(49, 50, 138);
/* oklch */ color: oklch(37.4% 0.143 276.5);

Tailwind

colors: {
  custom: {
    50: '#746aad',
    500: '#31328a',
    950: '#000000',
  },
}

SCSS

$custom: #31328a;
$custom-light: #746aad;
$custom-dark: #000000;

JSON

{
  "hex": "#31328a",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 138
  },
  "hsl": {
    "h": 239.326,
    "s": 47.594,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37413,
    "c": 0.14281,
    "h": 276.5
  },
  "luminance": 0.04769
}

Semantic roles & 50–950 ramp

primary

#31328A

secondary

#B2B165

accent

#D651D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #31328A

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

Preview Lab → · Contrast checker → · Palette generator →