#631C8E#631C8E

#631C8E is a dark, vivid violet. Relative luminance 0.054; OKLCH L 40.2% C 0.176 H 308.5°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#631C8E
RGB	rgb(99, 28, 142)
HSL	hsl(277, 67%, 33%)
HSV	hsv(277, 80%, 56%)
CMYK	cmyk(30.3%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(27.94, 50.06, -48.45)
CIE-LCH	lch(27.94, 69.67, 315.94°)
OKLab	oklab(40.15% 0.1095 -0.1377)
OKLCH	oklch(40.15% 0.176 308.5)
XYZ	xyz(10.4423, 5.4363, 26.0852)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C8E #478E1C

analogous

#2A1C8E #631C8E #8E1C80

triadic

#631C8E #8E631C #1C8E63

tetradic

#631C8E #8E2A1C #478E1C #1C808E

square

#631C8E #8E2A1C #478E1C #1C808E

split-complementary

#631C8E #808E1C #1C8E2A

monochromatic

#1C0828 #3F125B #631C8E #8726C1 #A449DB

Accessibility & contrast

On white

10.06

#631C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#631C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C8E

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C8E	#FFFFFF	#000000	##FFFFFF
##631C8E	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F91

Deuteranopia (green-blind)

#00438C

Tritanopia (blue-blind)

#5C3955

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #631c8e;
/* rgb */ color: rgb(99, 28, 142);
/* oklch */ color: oklch(40.2% 0.176 308.5);

Tailwind

colors: {
  custom: {
    50: '#9461b0',
    500: '#631c8e',
    950: '#000000',
  },
}

SCSS

$custom: #631c8e;
$custom-light: #9461b0;
$custom-dark: #000000;

JSON

{
  "hex": "#631c8e",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 277.368,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40151,
    "c": 0.17591,
    "h": 308.5
  },
  "luminance": 0.05436
}

Semantic roles & 50–950 ramp

primary

#631C8E

secondary

#75BD49

accent

#EA3E7F

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631C8E

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

Preview Lab → · Contrast checker → · Palette generator →