#631771#631771

#631771 is a dark, vivid purple. Relative luminance 0.045; OKLCH L 37.5% C 0.154 H 320.8°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#631771
RGB	rgb(99, 23, 113)
HSL	hsl(291, 66%, 27%)
HSV	hsv(291, 80%, 44%)
CMYK	cmyk(12.4%, 79.6%, 0%, 55.7%)
CIE-LAB	lab(25.13, 45.71, -34.70)
CIE-LCH	lch(25.13, 57.39, 322.79°)
OKLab	oklab(37.48% 0.1193 -0.0973)
OKLCH	oklch(37.48% 0.154 320.8)
XYZ	xyz(8.4323, 4.4582, 16.0359)
Luminance	0.0446 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631771 #257117

analogous

#361771 #631771 #711752

triadic

#631771 #716317 #177163

tetradic

#631771 #713617 #257117 #175271

square

#631771 #713617 #257117 #175271

split-complementary

#631771 #527117 #177136

monochromatic

#160519 #360D3E #631771 #9021A4 #BB2ED4

Accessibility & contrast

On white

11.10

#631771 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#631771 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631771

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631771	#FFFFFF	#000000	##FFFFFF
##631771	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003673

Deuteranopia (green-blind)

#213E6F

Tritanopia (blue-blind)

#642943

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #631771;
/* rgb */ color: rgb(99, 23, 113);
/* oklch */ color: oklch(37.5% 0.154 320.8);

Tailwind

colors: {
  custom: {
    50: '#935e9a',
    500: '#631771',
    950: '#000000',
  },
}

SCSS

$custom: #631771;
$custom-light: #935e9a;
$custom-dark: #000000;

JSON

{
  "hex": "#631771",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 113
  },
  "hsl": {
    "h": 290.667,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.3748,
    "c": 0.15391,
    "h": 320.8
  },
  "luminance": 0.04458
}

Semantic roles & 50–950 ramp

primary

#631771

secondary

#4EA73D

accent

#E93F59

background

#F9F5F9

surface

#F2E9F2

border

#CCC5CC

text

#0D050E

muted

#7E797E

Preview Lab

Preview with #631771

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

Preview Lab → · Contrast checker → · Palette generator →