#631FA0#631FA0

#631FA0 is a dark, vivid violet. Relative luminance 0.062; OKLCH L 41.9% C 0.191 H 302.4°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#631FA0
RGB	rgb(99, 31, 160)
HSL	hsl(272, 68%, 37%)
HSV	hsv(272, 81%, 63%)
CMYK	cmyk(38.1%, 80.6%, 0%, 37.3%)
CIE-LAB	lab(29.84, 53.11, -56.40)
CIE-LCH	lch(29.84, 77.47, 313.28°)
OKLab	oklab(41.94% 0.1022 -0.161)
OKLCH	oklch(41.94% 0.191 302.4)
XYZ	xyz(11.9792, 6.1707, 33.8108)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631FA0 #5CA01F

analogous

#231FA0 #631FA0 #A01F9C

triadic

#631FA0 #A0631F #1FA063

tetradic

#631FA0 #A0231F #5CA01F #1F9CA0

square

#631FA0 #A0231F #5CA01F #1F9CA0

split-complementary

#631FA0 #9CA01F #1FA023

monochromatic

#240B39 #43156D #631FA0 #8329D3 #A05ADF

Accessibility & contrast

On white

9.40

#631FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#631FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631FA0

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631FA0	#FFFFFF	#000000	##FFFFFF
##631FA0	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A3

Deuteranopia (green-blind)

#00469E

Tritanopia (blue-blind)

#564260

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #631fa0;
/* rgb */ color: rgb(99, 31, 160);
/* oklch */ color: oklch(41.9% 0.191 302.4);

Tailwind

colors: {
  custom: {
    50: '#9664bd',
    500: '#631fa0',
    950: '#000000',
  },
}

SCSS

$custom: #631fa0;
$custom-light: #9664bd;
$custom-dark: #000000;

JSON

{
  "hex": "#631fa0",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 160
  },
  "hsl": {
    "h": 271.628,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.41943,
    "c": 0.19074,
    "h": 302.4
  },
  "luminance": 0.06171
}

Semantic roles & 50–950 ramp

primary

#631FA0

secondary

#8AC358

accent

#EA3D8F

background

#F9F6FB

surface

#F2EBF7

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #631FA0

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

Preview Lab → · Contrast checker → · Palette generator →