#31328D#31328D

#31328D is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.7% C 0.147 H 276.2°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#31328D
RGB	rgb(49, 50, 141)
HSL	hsl(239, 48%, 37%)
HSV	hsv(239, 65%, 55%)
CMYK	cmyk(65.2%, 64.5%, 0%, 44.7%)
CIE-LAB	lab(26.32, 29.27, -50.71)
CIE-LCH	lch(26.32, 58.55, 299.99°)
OKLab	oklab(37.68% 0.016 -0.1461)
OKLCH	oklch(37.68% 0.147 276.2)
XYZ	xyz(7.2134, 4.8567, 25.7514)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31328D #8D8C31

analogous

#31608D #31328D #5E318D

triadic

#31328D #8D3132 #328D31

tetradic

#31328D #8D3160 #8D8C31 #318D5E

square

#31328D #8D3160 #8D8C31 #318D5E

split-complementary

#31328D #8D5E31 #608D31

monochromatic

#111232 #212260 #31328D #4142BA #6C6DCC

Accessibility & contrast

On white

10.65

#31328D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#31328D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31328D

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31328D	#FFFFFF	#000000	##FFFFFF
##31328D	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004290

Deuteranopia (green-blind)

#003A8B

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #31328d;
/* rgb */ color: rgb(49, 50, 141);
/* oklch */ color: oklch(37.7% 0.147 276.2);

Tailwind

colors: {
  custom: {
    50: '#746aaf',
    500: '#31328d',
    950: '#000000',
  },
}

SCSS

$custom: #31328d;
$custom-light: #746aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#31328d",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 141
  },
  "hsl": {
    "h": 239.348,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37681,
    "c": 0.14699,
    "h": 276.2
  },
  "luminance": 0.04857
}

Semantic roles & 50–950 ramp

primary

#31328D

secondary

#B4B366

accent

#D750D8

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #31328D

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

Preview Lab → · Contrast checker → · Palette generator →