#631E9B#631E9B

#631E9B is a dark, vivid violet. Relative luminance 0.059; OKLCH L 41.4% C 0.187 H 304.0°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#631E9B
RGB	rgb(99, 30, 155)
HSL	hsl(273, 68%, 36%)
HSV	hsv(273, 81%, 61%)
CMYK	cmyk(36.1%, 80.6%, 0%, 39.2%)
CIE-LAB	lab(29.28, 52.30, -54.27)
CIE-LCH	lch(29.28, 75.37, 313.94°)
OKLab	oklab(41.42% 0.1044 -0.1548)
OKLCH	oklch(41.42% 0.187 304)
XYZ	xyz(11.5249, 5.9478, 31.5449)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631E9B #569B1E

analogous

#251E9B #631E9B #9B1E95

triadic

#631E9B #9B631E #1E9B63

tetradic

#631E9B #9B251E #569B1E #1E959B

square

#631E9B #9B251E #569B1E #1E959B

split-complementary

#631E9B #959B1E #1E9B25

monochromatic

#220A34 #421468 #631E9B #8428CE #A155DE

Accessibility & contrast

On white

9.59

#631E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#631E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631E9B

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631E9B	#FFFFFF	#000000	##FFFFFF
##631E9B	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#004599

Tritanopia (blue-blind)

#58405D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #631e9b;
/* rgb */ color: rgb(99, 30, 155);
/* oklch */ color: oklch(41.4% 0.187 304.0);

Tailwind

colors: {
  custom: {
    50: '#9563b9',
    500: '#631e9b',
    950: '#000000',
  },
}

SCSS

$custom: #631e9b;
$custom-light: #9563b9;
$custom-dark: #000000;

JSON

{
  "hex": "#631e9b",
  "rgb": {
    "r": 99,
    "g": 30,
    "b": 155
  },
  "hsl": {
    "h": 273.12,
    "s": 67.568,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41421,
    "c": 0.18671,
    "h": 304
  },
  "luminance": 0.05948
}

Semantic roles & 50–950 ramp

primary

#631E9B

secondary

#85C253

accent

#EA3D8B

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #631E9B

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

Preview Lab → · Contrast checker → · Palette generator →