#631A91#631A91

#631A91 is a dark, vivid violet. Relative luminance 0.054; OKLCH L 40.2% C 0.181 H 307.6°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#631A91
RGB	rgb(99, 26, 145)
HSL	hsl(277, 70%, 34%)
HSV	hsv(277, 82%, 57%)
CMYK	cmyk(31.7%, 82.1%, 0%, 43.1%)
CIE-LAB	lab(27.94, 51.45, -50.31)
CIE-LCH	lch(27.94, 71.96, 315.64°)
OKLab	oklab(40.23% 0.1104 -0.1431)
OKLCH	oklch(40.23% 0.181 307.6)
XYZ	xyz(10.6247, 5.4359, 27.2721)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631A91 #48911A

analogous

#271A91 #631A91 #911A83

triadic

#631A91 #91631A #1A9163

tetradic

#631A91 #91271A #48911A #1A8391

square

#631A91 #91271A #48911A #1A8391

split-complementary

#631A91 #83911A #1A9127

monochromatic

#1C0729 #40115D #631A91 #8623C5 #A447DE

Accessibility & contrast

On white

10.06

#631A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#631A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631A91

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631A91	#FFFFFF	#000000	##FFFFFF
##631A91	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004094

Deuteranopia (green-blind)

#00438F

Tritanopia (blue-blind)

#5B3A56

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #631a91;
/* rgb */ color: rgb(99, 26, 145);
/* oklch */ color: oklch(40.2% 0.181 307.6);

Tailwind

colors: {
  custom: {
    50: '#9461b2',
    500: '#631a91',
    950: '#000000',
  },
}

SCSS

$custom: #631a91;
$custom-light: #9461b2;
$custom-dark: #000000;

JSON

{
  "hex": "#631a91",
  "rgb": {
    "r": 99,
    "g": 26,
    "b": 145
  },
  "hsl": {
    "h": 276.807,
    "s": 69.591,
    "l": 33.529
  },
  "oklch": {
    "l": 0.40226,
    "c": 0.18073,
    "h": 307.6
  },
  "luminance": 0.05436
}

Semantic roles & 50–950 ramp

primary

#631A91

secondary

#76C047

accent

#EC3B80

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631A91

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

Preview Lab → · Contrast checker → · Palette generator →