#631FA8#631FA8

#631FA8 is a dark, vivid violet. Relative luminance 0.065; OKLCH L 42.6% C 0.199 H 300.1°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#631FA8
RGB	rgb(99, 31, 168)
HSL	hsl(270, 69%, 39%)
HSV	hsv(270, 82%, 66%)
CMYK	cmyk(41.1%, 81.5%, 0%, 34.1%)
CIE-LAB	lab(30.54, 55.01, -60.09)
CIE-LCH	lch(30.54, 81.47, 312.47°)
OKLab	oklab(42.65% 0.0998 -0.1719)
OKLCH	oklch(42.65% 0.199 300.1)
XYZ	xyz(12.7017, 6.4596, 37.6158)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631FA8 #64A81F

analogous

#1F20A8 #631FA8 #A81FA8

triadic

#631FA8 #A8631F #1FA863

tetradic

#631FA8 #A81F20 #64A81F #1FA8A8

square

#631FA8 #A81F20 #64A81F #1FA8A8

split-complementary

#631FA8 #A8A81F #20A81F

monochromatic

#260C41 #451574 #631FA8 #812CD8 #A060E2

Accessibility & contrast

On white

9.16

#631FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#631FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631FA8

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631FA8	#FFFFFF	#000000	##FFFFFF
##631FA8	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AC

Deuteranopia (green-blind)

#0047A5

Tritanopia (blue-blind)

#534665

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #631fa8;
/* rgb */ color: rgb(99, 31, 168);
/* oklch */ color: oklch(42.6% 0.199 300.1);

Tailwind

colors: {
  custom: {
    50: '#9664c3',
    500: '#631fa8',
    950: '#000000',
  },
}

SCSS

$custom: #631fa8;
$custom-light: #9664c3;
$custom-dark: #000000;

JSON

{
  "hex": "#631fa8",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 168
  },
  "hsl": {
    "h": 269.781,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4265,
    "c": 0.19873,
    "h": 300.1
  },
  "luminance": 0.0646
}

Semantic roles & 50–950 ramp

primary

#631FA8

secondary

#92C65D

accent

#EC3C95

background

#F9F6FC

surface

#F2EBF8

border

#CCC6D1

text

#0E0613

muted

#7E7A82

Preview Lab

Preview with #631FA8

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

Preview Lab → · Contrast checker → · Palette generator →