#631581#631581

#631581 is a dark, vivid purple. Relative luminance 0.048; OKLCH L 38.5% C 0.170 H 314.0°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#631581
RGB	rgb(99, 21, 129)
HSL	hsl(283, 72%, 29%)
HSV	hsv(283, 84%, 51%)
CMYK	cmyk(23.3%, 83.7%, 0%, 49.4%)
CIE-LAB	lab(26.08, 49.64, -43.35)
CIE-LCH	lch(26.08, 65.90, 318.87°)
OKLab	oklab(38.52% 0.1183 -0.1226)
OKLCH	oklch(38.52% 0.17 314)
XYZ	xyz(9.3755, 4.7743, 21.1923)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Indigo

#4B0082

ΔE00 5.48

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631581 #338115

analogous

#2D1581 #631581 #811569

triadic

#631581 #816315 #158163

tetradic

#631581 #812D15 #338115 #156981

square

#631581 #812D15 #338115 #156981

split-complementary

#631581 #698115 #15812D

monochromatic

#14041A #3B0C4C #631581 #8B1EB6 #AE33DE

Accessibility & contrast

On white

10.74

#631581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#631581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631581

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631581	#FFFFFF	#000000	##FFFFFF
##631581	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A84

Deuteranopia (green-blind)

#073F7F

Tritanopia (blue-blind)

#60304C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #631581;
/* rgb */ color: rgb(99, 21, 129);
/* oklch */ color: oklch(38.5% 0.170 314.0);

Tailwind

colors: {
  custom: {
    50: '#945ea6',
    500: '#631581',
    950: '#000000',
  },
}

SCSS

$custom: #631581;
$custom-light: #945ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#631581",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 129
  },
  "hsl": {
    "h": 283.333,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.38523,
    "c": 0.17037,
    "h": 314
  },
  "luminance": 0.04774
}

Semantic roles & 50–950 ramp

primary

#631581

secondary

#5EB63C

accent

#EF396C

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E050F

muted

#7E797F

Preview Lab

Preview with #631581

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

Preview Lab → · Contrast checker → · Palette generator →