#31328C#31328C

#31328C is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.146 H 276.3°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#31328C
RGB	rgb(49, 50, 140)
HSL	hsl(239, 48%, 37%)
HSV	hsv(239, 65%, 55%)
CMYK	cmyk(65%, 64.3%, 0%, 45.1%)
CIE-LAB	lab(26.24, 28.91, -50.23)
CIE-LCH	lch(26.24, 57.96, 299.92°)
OKLab	oklab(37.59% 0.016 -0.1447)
OKLCH	oklch(37.59% 0.146 276.3)
XYZ	xyz(7.1393, 4.8270, 25.3613)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31328C #8C8B31

analogous

#315F8C #31328C #5E318C

triadic

#31328C #8C3132 #328C31

tetradic

#31328C #8C315F #8C8B31 #318C5E

square

#31328C #8C315F #8C8B31 #318C5E

split-complementary

#31328C #8C5E31 #5F8C31

monochromatic

#111231 #21225F #31328C #4142B9 #6C6DCC

Accessibility & contrast

On white

10.68

#31328C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#31328C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31328C

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31328C	#FFFFFF	#000000	##FFFFFF
##31328C	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428F

Deuteranopia (green-blind)

#003A8A

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #31328c;
/* rgb */ color: rgb(49, 50, 140);
/* oklch */ color: oklch(37.6% 0.146 276.3);

Tailwind

colors: {
  custom: {
    50: '#746aae',
    500: '#31328c',
    950: '#000000',
  },
}

SCSS

$custom: #31328c;
$custom-light: #746aae;
$custom-dark: #000000;

JSON

{
  "hex": "#31328c",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 140
  },
  "hsl": {
    "h": 239.341,
    "s": 48.148,
    "l": 37.059
  },
  "oklch": {
    "l": 0.37591,
    "c": 0.1456,
    "h": 276.3
  },
  "luminance": 0.04828
}

Semantic roles & 50–950 ramp

primary

#31328C

secondary

#B3B266

accent

#D650D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #31328C

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

Preview Lab → · Contrast checker → · Palette generator →