#631B79#631B79

#631B79 is a dark, vivid purple. Relative luminance 0.048; OKLCH L 38.4% C 0.157 H 316.9°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#631B79
RGB	rgb(99, 27, 121)
HSL	hsl(286, 64%, 29%)
HSV	hsv(286, 78%, 47%)
CMYK	cmyk(18.2%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(26.21, 45.87, -38.08)
CIE-LCH	lch(26.21, 59.62, 320.30°)
OKLab	oklab(38.42% 0.1145 -0.1072)
OKLCH	oklch(38.42% 0.157 316.9)
XYZ	xyz(8.9882, 4.8174, 18.5418)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B79 #31791B

analogous

#341B79 #631B79 #791B60

triadic

#631B79 #79631B #1B7963

tetradic

#631B79 #79341B #31791B #1B6079

square

#631B79 #79341B #31791B #1B6079

split-complementary

#631B79 #60791B #1B7934

monochromatic

#140619 #3A1047 #631B79 #8C26AB #B03BD3

Accessibility & contrast

On white

10.70

#631B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#631B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B79

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B79	#FFFFFF	#000000	##FFFFFF
##631B79	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7C

Deuteranopia (green-blind)

#1C4077

Tritanopia (blue-blind)

#622F49

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #631b79;
/* rgb */ color: rgb(99, 27, 121);
/* oklch */ color: oklch(38.4% 0.157 316.9);

Tailwind

colors: {
  custom: {
    50: '#9360a0',
    500: '#631b79',
    950: '#000000',
  },
}

SCSS

$custom: #631b79;
$custom-light: #9360a0;
$custom-dark: #000000;

JSON

{
  "hex": "#631b79",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 285.957,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.38422,
    "c": 0.15682,
    "h": 316.9
  },
  "luminance": 0.04817
}

Semantic roles & 50–950 ramp

primary

#631B79

secondary

#5CAD43

accent

#E74168

background

#F9F5F9

surface

#F2EAF2

border

#CCC6CC

text

#0D050F

muted

#7E797E

Preview Lab

Preview with #631B79

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

Preview Lab → · Contrast checker → · Palette generator →