#631FA6#631FA6

#631FA6 is a dark, vivid violet. Relative luminance 0.064; OKLCH L 42.5% C 0.197 H 300.7°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#631FA6
RGB	rgb(99, 31, 166)
HSL	hsl(270, 69%, 39%)
HSV	hsv(270, 81%, 65%)
CMYK	cmyk(40.4%, 81.3%, 0%, 34.9%)
CIE-LAB	lab(30.37, 54.53, -59.17)
CIE-LCH	lch(30.37, 80.47, 312.66°)
OKLab	oklab(42.47% 0.1004 -0.1692)
OKLCH	oklch(42.47% 0.197 300.7)
XYZ	xyz(12.5168, 6.3857, 36.6421)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631FA6 #62A61F

analogous

#1F1FA6 #631FA6 #A61FA5

triadic

#631FA6 #A6631F #1FA663

tetradic

#631FA6 #A61F1F #62A61F #1FA5A6

square

#631FA6 #A61F1F #62A61F #1FA5A6

split-complementary

#631FA6 #A5A61F #1FA61F

monochromatic

#250C3F #441572 #631FA6 #822BD7 #A05EE1

Accessibility & contrast

On white

9.22

#631FA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#631FA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631FA6

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631FA6	#FFFFFF	#000000	##FFFFFF
##631FA6	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AA

Deuteranopia (green-blind)

#0047A3

Tritanopia (blue-blind)

#534563

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #631fa6;
/* rgb */ color: rgb(99, 31, 166);
/* oklch */ color: oklch(42.5% 0.197 300.7);

Tailwind

colors: {
  custom: {
    50: '#9664c1',
    500: '#631fa6',
    950: '#000000',
  },
}

SCSS

$custom: #631fa6;
$custom-light: #9664c1;
$custom-dark: #000000;

JSON

{
  "hex": "#631fa6",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 166
  },
  "hsl": {
    "h": 270.222,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.42471,
    "c": 0.19673,
    "h": 300.7
  },
  "luminance": 0.06386
}

Semantic roles & 50–950 ramp

primary

#631FA6

secondary

#90C55B

accent

#EB3C93

background

#F9F6FC

surface

#F2EBF8

border

#CCC6D1

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #631FA6

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

Preview Lab → · Contrast checker → · Palette generator →