#631E99#631E99

#631E99 is a dark, vivid violet. Relative luminance 0.059; OKLCH L 41.3% C 0.185 H 304.6°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#631E99
RGB	rgb(99, 30, 153)
HSL	hsl(274, 67%, 36%)
HSV	hsv(274, 80%, 60%)
CMYK	cmyk(35.3%, 80.4%, 0%, 40%)
CIE-LAB	lab(29.11, 51.84, -53.32)
CIE-LCH	lch(29.11, 74.37, 314.19°)
OKLab	oklab(41.25% 0.105 -0.152)
OKLCH	oklch(41.25% 0.185 304.6)
XYZ	xyz(11.3583, 5.8812, 30.6676)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631E99 #54991E

analogous

#261E99 #631E99 #991E91

triadic

#631E99 #99631E #1E9963

tetradic

#631E99 #99261E #54991E #1E9199

square

#631E99 #99261E #54991E #1E9199

split-complementary

#631E99 #91991E #1E9926

monochromatic

#210A33 #421466 #631E99 #8428CC #A154DD

Accessibility & contrast

On white

9.65

#631E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#631E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631E99

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631E99	#FFFFFF	#000000	##FFFFFF
##631E99	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439C

Deuteranopia (green-blind)

#004597

Tritanopia (blue-blind)

#583F5C

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #631e99;
/* rgb */ color: rgb(99, 30, 153);
/* oklch */ color: oklch(41.3% 0.185 304.6);

Tailwind

colors: {
  custom: {
    50: '#9563b8',
    500: '#631e99',
    950: '#000000',
  },
}

SCSS

$custom: #631e99;
$custom-light: #9563b8;
$custom-dark: #000000;

JSON

{
  "hex": "#631e99",
  "rgb": {
    "r": 99,
    "g": 30,
    "b": 153
  },
  "hsl": {
    "h": 273.659,
    "s": 67.213,
    "l": 35.882
  },
  "oklch": {
    "l": 0.4125,
    "c": 0.18473,
    "h": 304.6
  },
  "luminance": 0.05881
}

Semantic roles & 50–950 ramp

primary

#631E99

secondary

#83C152

accent

#EA3E89

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #631E99

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

Preview Lab → · Contrast checker → · Palette generator →