#631F83#631F83

#631F83 is a dark, vivid purple. Relative luminance 0.053; OKLCH L 39.6% C 0.162 H 312.3°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#631F83
RGB	rgb(99, 31, 131)
HSL	hsl(281, 62%, 32%)
HSV	hsv(281, 76%, 51%)
CMYK	cmyk(24.4%, 76.3%, 0%, 48.6%)
CIE-LAB	lab(27.49, 46.43, -42.32)
CIE-LCH	lch(27.49, 62.83, 317.65°)
OKLab	oklab(39.57% 0.109 -0.1197)
OKLCH	oklch(39.57% 0.162 312.3)
XYZ	xyz(9.7316, 5.2716, 21.9732)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.47

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631F83 #3F831F

analogous

#311F83 #631F83 #831F71

triadic

#631F83 #83631F #1F8363

tetradic

#631F83 #83311F #3F831F #1F7183

square

#631F83 #83311F #3F831F #1F7183

split-complementary

#631F83 #71831F #1F8331

monochromatic

#180820 #3E1352 #631F83 #882BB4 #A749D4

Accessibility & contrast

On white

10.22

#631F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#631F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631F83

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631F83	#FFFFFF	#000000	##FFFFFF
##631F83	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E86

Deuteranopia (green-blind)

#124281

Tritanopia (blue-blind)

#5F364F

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #631f83;
/* rgb */ color: rgb(99, 31, 131);
/* oklch */ color: oklch(39.6% 0.162 312.3);

Tailwind

colors: {
  custom: {
    50: '#9362a8',
    500: '#631f83',
    950: '#000000',
  },
}

SCSS

$custom: #631f83;
$custom-light: #9362a8;
$custom-dark: #000000;

JSON

{
  "hex": "#631f83",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 131
  },
  "hsl": {
    "h": 280.8,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39566,
    "c": 0.16186,
    "h": 312.3
  },
  "luminance": 0.05271
}

Semantic roles & 50–950 ramp

primary

#631F83

secondary

#6BB648

accent

#E54377

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D0510

muted

#7E7A7F

Preview Lab

Preview with #631F83

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

Preview Lab → · Contrast checker → · Palette generator →