#631D99#631D99

#631D99 is a dark, vivid violet. Relative luminance 0.058; OKLCH L 41.2% C 0.186 H 304.7°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#631D99
RGB	rgb(99, 29, 153)
HSL	hsl(274, 68%, 36%)
HSV	hsv(274, 81%, 60%)
CMYK	cmyk(35.3%, 81%, 0%, 40%)
CIE-LAB	lab(28.98, 52.21, -53.53)
CIE-LCH	lch(28.98, 74.78, 314.28°)
OKLab	oklab(41.16% 0.1058 -0.1526)
OKLCH	oklch(41.16% 0.186 304.7)
XYZ	xyz(11.3334, 5.8313, 30.6593)
Luminance	0.0583 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D99 #53991D

analogous

#251D99 #631D99 #991D91

triadic

#631D99 #99631D #1D9963

tetradic

#631D99 #99251D #53991D #1D9199

square

#631D99 #99251D #53991D #1D9199

split-complementary

#631D99 #91991D #1D9925

monochromatic

#200932 #421366 #631D99 #8427CC #A152DE

Accessibility & contrast

On white

9.69

#631D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#631D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D99

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D99	#FFFFFF	#000000	##FFFFFF
##631D99	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439C

Deuteranopia (green-blind)

#004497

Tritanopia (blue-blind)

#593E5C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #631d99;
/* rgb */ color: rgb(99, 29, 153);
/* oklch */ color: oklch(41.2% 0.186 304.7);

Tailwind

colors: {
  custom: {
    50: '#9562b8',
    500: '#631d99',
    950: '#000000',
  },
}

SCSS

$custom: #631d99;
$custom-light: #9562b8;
$custom-dark: #000000;

JSON

{
  "hex": "#631d99",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 153
  },
  "hsl": {
    "h": 273.871,
    "s": 68.132,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41161,
    "c": 0.18569,
    "h": 304.7
  },
  "luminance": 0.05831
}

Semantic roles & 50–950 ramp

primary

#631D99

secondary

#82C151

accent

#EB3D89

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #631D99

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

Preview Lab → · Contrast checker → · Palette generator →