#631C88#631C88

#631C88 is a dark, vivid violet. Relative luminance 0.053; OKLCH L 39.7% C 0.170 H 310.7°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#631C88
RGB	rgb(99, 28, 136)
HSL	hsl(279, 66%, 32%)
HSV	hsv(279, 79%, 53%)
CMYK	cmyk(27.2%, 79.4%, 0%, 46.7%)
CIE-LAB	lab(27.47, 48.72, -45.50)
CIE-LCH	lch(27.47, 66.66, 316.96°)
OKLab	oklab(39.67% 0.1109 -0.129)
OKLCH	oklch(39.67% 0.17 310.7)
XYZ	xyz(10.0039, 5.2610, 23.7763)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C88 #41881C

analogous

#2D1C88 #631C88 #881C77

triadic

#631C88 #88631C #1C8863

tetradic

#631C88 #882D1C #41881C #1C7788

square

#631C88 #882D1C #41881C #1C7788

split-complementary

#631C88 #77881C #1C882D

monochromatic

#190722 #3E1255 #631C88 #8826BB #A646D9

Accessibility & contrast

On white

10.23

#631C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#631C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C88

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C88	#FFFFFF	#000000	##FFFFFF
##631C88	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8B

Deuteranopia (green-blind)

#004286

Tritanopia (blue-blind)

#5E3652

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #631c88;
/* rgb */ color: rgb(99, 28, 136);
/* oklch */ color: oklch(39.7% 0.170 310.7);

Tailwind

colors: {
  custom: {
    50: '#9461ab',
    500: '#631c88',
    950: '#000000',
  },
}

SCSS

$custom: #631c88;
$custom-light: #9461ab;
$custom-dark: #000000;

JSON

{
  "hex": "#631c88",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 136
  },
  "hsl": {
    "h": 279.444,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39666,
    "c": 0.17008,
    "h": 310.7
  },
  "luminance": 0.05261
}

Semantic roles & 50–950 ramp

primary

#631C88

secondary

#6DBA45

accent

#E93F79

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #631C88

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

Preview Lab → · Contrast checker → · Palette generator →