#631981#631981

#631981 is a dark, vivid purple. Relative luminance 0.049; OKLCH L 38.8% C 0.167 H 313.7°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#631981
RGB	rgb(99, 25, 129)
HSL	hsl(283, 68%, 30%)
HSV	hsv(283, 81%, 51%)
CMYK	cmyk(23.3%, 80.6%, 0%, 49.4%)
CIE-LAB	lab(26.54, 48.30, -42.60)
CIE-LCH	lch(26.54, 64.40, 318.58°)
OKLab	oklab(38.85% 0.115 -0.1204)
OKLCH	oklch(38.85% 0.167 313.7)
XYZ	xyz(9.4550, 4.9332, 21.2188)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Indigo

#4B0082

ΔE00 5.79

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631981 #378119

analogous

#2F1981 #631981 #81196B

triadic

#631981 #816319 #198163

tetradic

#631981 #812F19 #378119 #196B81

square

#631981 #812F19 #378119 #196B81

split-complementary

#631981 #6B8119 #19812F

monochromatic

#14051A #3C0F4E #631981 #8A23B4 #AC3BD9

Accessibility & contrast

On white

10.57

#631981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#631981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631981

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631981	#FFFFFF	#000000	##FFFFFF
##631981	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B84

Deuteranopia (green-blind)

#0D407F

Tritanopia (blue-blind)

#60324D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #631981;
/* rgb */ color: rgb(99, 25, 129);
/* oklch */ color: oklch(38.8% 0.167 313.7);

Tailwind

colors: {
  custom: {
    50: '#935fa6',
    500: '#631981',
    950: '#000000',
  },
}

SCSS

$custom: #631981;
$custom-light: #935fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#631981",
  "rgb": {
    "r": 99,
    "g": 25,
    "b": 129
  },
  "hsl": {
    "h": 282.692,
    "s": 67.532,
    "l": 30.196
  },
  "oklch": {
    "l": 0.38847,
    "c": 0.16652,
    "h": 313.7
  },
  "luminance": 0.04933
}

Semantic roles & 50–950 ramp

primary

#631981

secondary

#62B541

accent

#EA3D6F

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E050F

muted

#7E797F

Preview Lab

Preview with #631981

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

Preview Lab → · Contrast checker → · Palette generator →