#631B89#631B89

#631B89 is a dark, vivid violet. Relative luminance 0.052; OKLCH L 39.7% C 0.172 H 310.4°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#631B89
RGB	rgb(99, 27, 137)
HSL	hsl(279, 67%, 32%)
HSV	hsv(279, 80%, 54%)
CMYK	cmyk(27.7%, 80.3%, 0%, 46.3%)
CIE-LAB	lab(27.42, 49.31, -46.20)
CIE-LCH	lch(27.42, 67.57, 316.87°)
OKLab	oklab(39.66% 0.1115 -0.131)
OKLCH	oklch(39.66% 0.172 310.4)
XYZ	xyz(10.0520, 5.2429, 24.1445)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B89 #41891B

analogous

#2C1B89 #631B89 #891B78

triadic

#631B89 #89631B #1B8963

tetradic

#631B89 #892C1B #41891B #1B7889

square

#631B89 #892C1B #41891B #1B7889

split-complementary

#631B89 #78891B #1B892C

monochromatic

#190723 #3E1156 #631B89 #8825BC #A644DA

Accessibility & contrast

On white

10.25

#631B89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#631B89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B89

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B89	#FFFFFF	#000000	##FFFFFF
##631B89	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8C

Deuteranopia (green-blind)

#004287

Tritanopia (blue-blind)

#5E3652

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #631b89;
/* rgb */ color: rgb(99, 27, 137);
/* oklch */ color: oklch(39.7% 0.172 310.4);

Tailwind

colors: {
  custom: {
    50: '#9461ac',
    500: '#631b89',
    950: '#000000',
  },
}

SCSS

$custom: #631b89;
$custom-light: #9461ac;
$custom-dark: #000000;

JSON

{
  "hex": "#631b89",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 137
  },
  "hsl": {
    "h": 279.273,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39655,
    "c": 0.17208,
    "h": 310.4
  },
  "luminance": 0.05243
}

Semantic roles & 50–950 ramp

primary

#631B89

secondary

#6DBC44

accent

#EA3E79

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #631B89

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

Preview Lab → · Contrast checker → · Palette generator →