#631588#631588

#631588 is a dark, vivid purple. Relative luminance 0.050; OKLCH L 39.1% C 0.177 H 311.3°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#631588
RGB	rgb(99, 21, 136)
HSL	hsl(281, 73%, 31%)
HSV	hsv(281, 85%, 53%)
CMYK	cmyk(27.2%, 84.6%, 0%, 46.7%)
CIE-LAB	lab(26.64, 51.12, -46.84)
CIE-LCH	lch(26.64, 69.33, 317.50°)
OKLab	oklab(39.09% 0.1166 -0.1329)
OKLCH	oklch(39.09% 0.177 311.3)
XYZ	xyz(9.8568, 4.9668, 23.7272)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631588 #3A8815

analogous

#2A1588 #631588 #881573

triadic

#631588 #886315 #158863

tetradic

#631588 #882A15 #3A8815 #157388

square

#631588 #882A15 #3A8815 #157388

split-complementary

#631588 #738815 #15882A

monochromatic

#16051E #3C0D53 #631588 #8A1DBD #AA37E0

Accessibility & contrast

On white

10.53

#631588 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#631588 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631588

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631588	#FFFFFF	#000000	##FFFFFF
##631588	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8B

Deuteranopia (green-blind)

#004086

Tritanopia (blue-blind)

#5E3350

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #631588;
/* rgb */ color: rgb(99, 21, 136);
/* oklch */ color: oklch(39.1% 0.177 311.3);

Tailwind

colors: {
  custom: {
    50: '#945eab',
    500: '#631588',
    950: '#000000',
  },
}

SCSS

$custom: #631588;
$custom-light: #945eab;
$custom-dark: #000000;

JSON

{
  "hex": "#631588",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 136
  },
  "hsl": {
    "h": 280.696,
    "s": 73.248,
    "l": 30.784
  },
  "oklch": {
    "l": 0.39088,
    "c": 0.17676,
    "h": 311.3
  },
  "luminance": 0.04967
}

Semantic roles & 50–950 ramp

primary

#631588

secondary

#66BC3D

accent

#F03873

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E0510

muted

#7E797F

Preview Lab

Preview with #631588

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

Preview Lab → · Contrast checker → · Palette generator →