#631381#631381

#631381 is a dark, vivid purple. Relative luminance 0.047; OKLCH L 38.4% C 0.172 H 314.1°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#631381
RGB	rgb(99, 19, 129)
HSL	hsl(284, 74%, 29%)
HSV	hsv(284, 85%, 51%)
CMYK	cmyk(23.3%, 85.3%, 0%, 49.4%)
CIE-LAB	lab(25.87, 50.24, -43.69)
CIE-LCH	lch(25.87, 66.58, 318.99°)
OKLab	oklab(38.38% 0.1198 -0.1236)
OKLCH	oklch(38.38% 0.172 314.1)
XYZ	xyz(9.3402, 4.7037, 21.1805)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Indigo

#4B0082

ΔE00 5.35

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631381 #318113

analogous

#2C1381 #631381 #811368

triadic

#631381 #816313 #138163

tetradic

#631381 #812C13 #318113 #136881

square

#631381 #812C13 #318113 #136881

split-complementary

#631381 #688113 #13812C

monochromatic

#14041B #3A0B4C #631381 #8C1BB6 #B02EE0

Accessibility & contrast

On white

10.82

#631381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#631381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631381

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631381	#FFFFFF	#000000	##FFFFFF
##631381	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003984

Deuteranopia (green-blind)

#053F7F

Tritanopia (blue-blind)

#602F4C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #631381;
/* rgb */ color: rgb(99, 19, 129);
/* oklch */ color: oklch(38.4% 0.172 314.1);

Tailwind

colors: {
  custom: {
    50: '#945da6',
    500: '#631381',
    950: '#000000',
  },
}

SCSS

$custom: #631381;
$custom-light: #945da6;
$custom-dark: #000000;

JSON

{
  "hex": "#631381",
  "rgb": {
    "r": 99,
    "g": 19,
    "b": 129
  },
  "hsl": {
    "h": 283.636,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.38377,
    "c": 0.17212,
    "h": 314.1
  },
  "luminance": 0.04703
}

Semantic roles & 50–950 ramp

primary

#631381

secondary

#5CB63A

accent

#F1376A

background

#F9F5FA

surface

#F2E9F4

border

#CCC5CE

text

#0E050F

muted

#7E797F

Preview Lab

Preview with #631381

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

Preview Lab → · Contrast checker → · Palette generator →