#631D83#631D83

#631D83 is a dark, vivid purple. Relative luminance 0.052; OKLCH L 39.4% C 0.164 H 312.5°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#631D83
RGB	rgb(99, 29, 131)
HSL	hsl(281, 64%, 31%)
HSV	hsv(281, 78%, 51%)
CMYK	cmyk(24.4%, 77.9%, 0%, 48.6%)
CIE-LAB	lab(27.21, 47.23, -42.77)
CIE-LCH	lch(27.21, 63.72, 317.84°)
OKLab	oklab(39.37% 0.1109 -0.121)
OKLCH	oklch(39.37% 0.164 312.5)
XYZ	xyz(9.6809, 5.1704, 21.9563)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.26

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D83 #3D831D

analogous

#301D83 #631D83 #831D70

triadic

#631D83 #83631D #1D8363

tetradic

#631D83 #83301D #3D831D #1D7083

square

#631D83 #83301D #3D831D #1D7083

split-complementary

#631D83 #70831D #1D8330

monochromatic

#17071F #3D1251 #631D83 #8928B5 #A845D6

Accessibility & contrast

On white

10.32

#631D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#631D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D83

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D83	#FFFFFF	#000000	##FFFFFF
##631D83	1.00	10.32	2.03	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#0F4281

Tritanopia (blue-blind)

#5F354F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #631d83;
/* rgb */ color: rgb(99, 29, 131);
/* oklch */ color: oklch(39.4% 0.164 312.5);

Tailwind

colors: {
  custom: {
    50: '#9361a8',
    500: '#631d83',
    950: '#000000',
  },
}

SCSS

$custom: #631d83;
$custom-light: #9361a8;
$custom-dark: #000000;

JSON

{
  "hex": "#631d83",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 131
  },
  "hsl": {
    "h": 281.176,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.39368,
    "c": 0.16415,
    "h": 312.5
  },
  "luminance": 0.0517
}

Semantic roles & 50–950 ramp

primary

#631D83

secondary

#69B646

accent

#E74175

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #631D83

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

Preview Lab → · Contrast checker → · Palette generator →