#631B93#631B93

#631B93 is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.5% C 0.182 H 306.9°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#631B93
RGB	rgb(99, 27, 147)
HSL	hsl(276, 69%, 34%)
HSV	hsv(276, 82%, 58%)
CMYK	cmyk(32.7%, 81.6%, 0%, 42.4%)
CIE-LAB	lab(28.23, 51.55, -51.08)
CIE-LCH	lch(28.23, 72.57, 315.27°)
OKLab	oklab(40.48% 0.1091 -0.1454)
OKLCH	oklch(40.48% 0.182 306.9)
XYZ	xyz(10.8028, 5.5432, 28.0990)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B93 #4B931B

analogous

#271B93 #631B93 #931B87

triadic

#631B93 #93631B #1B9363

tetradic

#631B93 #93271B #4B931B #1B8793

square

#631B93 #93271B #4B931B #1B8793

split-complementary

#631B93 #87931B #1B9327

monochromatic

#1D082C #40125F #631B93 #8624C7 #A34BDE

Accessibility & contrast

On white

9.96

#631B93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#631B93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B93

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B93	#FFFFFF	#000000	##FFFFFF
##631B93	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004096

Deuteranopia (green-blind)

#004391

Tritanopia (blue-blind)

#5B3B58

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631b93;
/* rgb */ color: rgb(99, 27, 147);
/* oklch */ color: oklch(40.5% 0.182 306.9);

Tailwind

colors: {
  custom: {
    50: '#9561b4',
    500: '#631b93',
    950: '#000000',
  },
}

SCSS

$custom: #631b93;
$custom-light: #9561b4;
$custom-dark: #000000;

JSON

{
  "hex": "#631b93",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 147
  },
  "hsl": {
    "h": 276,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40479,
    "c": 0.18172,
    "h": 306.9
  },
  "luminance": 0.05543
}

Semantic roles & 50–950 ramp

primary

#631B93

secondary

#79C04A

accent

#EC3C82

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631B93

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

Preview Lab → · Contrast checker → · Palette generator →