#631578#631578

#631578 is a dark, vivid purple. Relative luminance 0.045; OKLCH L 37.8% C 0.162 H 317.7°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#631578
RGB	rgb(99, 21, 120)
HSL	hsl(287, 70%, 28%)
HSV	hsv(287, 83%, 47%)
CMYK	cmyk(17.5%, 82.5%, 0%, 52.9%)
CIE-LAB	lab(25.40, 47.78, -38.75)
CIE-LCH	lch(25.40, 61.52, 320.96°)
OKLab	oklab(37.83% 0.1201 -0.1091)
OKLCH	oklch(37.83% 0.162 317.7)
XYZ	xyz(8.8034, 4.5454, 18.1793)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Darkish Purple

#751973

ΔE00 4.77

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631578 #2A7815

analogous

#321578 #631578 #78155B

triadic

#631578 #786315 #157863

tetradic

#631578 #783215 #2A7815 #155B78

square

#631578 #783215 #2A7815 #155B78

split-complementary

#631578 #5B7815 #157832

monochromatic

#15051A #380C44 #631578 #8E1EAC #B62DDA

Accessibility & contrast

On white

11.00

#631578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#631578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631578

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631578	#FFFFFF	#000000	##FFFFFF
##631578	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377B

Deuteranopia (green-blind)

#193E76

Tritanopia (blue-blind)

#622C47

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #631578;
/* rgb */ color: rgb(99, 21, 120);
/* oklch */ color: oklch(37.8% 0.162 317.7);

Tailwind

colors: {
  custom: {
    50: '#935da0',
    500: '#631578',
    950: '#000000',
  },
}

SCSS

$custom: #631578;
$custom-light: #935da0;
$custom-dark: #000000;

JSON

{
  "hex": "#631578",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 120
  },
  "hsl": {
    "h": 287.273,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.37828,
    "c": 0.16225,
    "h": 317.7
  },
  "luminance": 0.04545
}

Semantic roles & 50–950 ramp

primary

#631578

secondary

#53AE3B

accent

#ED3B61

background

#F9F5F9

surface

#F2E9F2

border

#CCC5CC

text

#0D050F

muted

#7E797E

Preview Lab

Preview with #631578

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

Preview Lab → · Contrast checker → · Palette generator →