#631881#631881

#631881 is a dark, vivid purple. Relative luminance 0.049; OKLCH L 38.8% C 0.168 H 313.7°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#631881
RGB	rgb(99, 24, 129)
HSL	hsl(283, 69%, 30%)
HSV	hsv(283, 81%, 51%)
CMYK	cmyk(23.3%, 81.4%, 0%, 49.4%)
CIE-LAB	lab(26.42, 48.65, -42.80)
CIE-LCH	lch(26.42, 64.79, 318.66°)
OKLab	oklab(38.76% 0.1159 -0.121)
OKLCH	oklch(38.76% 0.168 313.7)
XYZ	xyz(9.4340, 4.8912, 21.2118)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Indigo

#4B0082

ΔE00 5.71

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631881 #368118

analogous

#2E1881 #631881 #81186B

triadic

#631881 #816318 #188163

tetradic

#631881 #812E18 #368118 #186B81

square

#631881 #812E18 #368118 #186B81

split-complementary

#631881 #6B8118 #18812E

monochromatic

#14051A #3B0E4D #631881 #8B22B5 #AC39DA

Accessibility & contrast

On white

10.62

#631881 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#631881 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631881

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631881	#FFFFFF	#000000	##FFFFFF
##631881	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B84

Deuteranopia (green-blind)

#0C407F

Tritanopia (blue-blind)

#60314D

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #631881;
/* rgb */ color: rgb(99, 24, 129);
/* oklch */ color: oklch(38.8% 0.168 313.7);

Tailwind

colors: {
  custom: {
    50: '#935fa6',
    500: '#631881',
    950: '#000000',
  },
}

SCSS

$custom: #631881;
$custom-light: #935fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#631881",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 129
  },
  "hsl": {
    "h": 282.857,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.38762,
    "c": 0.16753,
    "h": 313.7
  },
  "luminance": 0.04891
}

Semantic roles & 50–950 ramp

primary

#631881

secondary

#61B540

accent

#EB3C6E

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E050F

muted

#7E797F

Preview Lab

Preview with #631881

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

Preview Lab → · Contrast checker → · Palette generator →