#631B7D#631B7D

#631B7D is a dark, vivid purple. Relative luminance 0.049; OKLCH L 38.7% C 0.161 H 315.2°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#631B7D
RGB	rgb(99, 27, 125)
HSL	hsl(284, 64%, 30%)
HSV	hsv(284, 78%, 49%)
CMYK	cmyk(20.8%, 78.4%, 0%, 51%)
CIE-LAB	lab(26.50, 46.71, -40.15)
CIE-LCH	lch(26.50, 61.60, 319.32°)
OKLab	oklab(38.72% 0.1139 -0.1133)
OKLCH	oklch(38.72% 0.161 315.2)
XYZ	xyz(9.2386, 4.9175, 19.8606)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B7D #357D1B

analogous

#321B7D #631B7D #7D1B66

triadic

#631B7D #7D631B #1B7D63

tetradic

#631B7D #7D321B #357D1B #1B667D

square

#631B7D #7D321B #357D1B #1B667D

split-complementary

#631B7D #667D1B #1B7D32

monochromatic

#140519 #3B104B #631B7D #8B26AF #AD3DD5

Accessibility & contrast

On white

10.59

#631B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#631B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B7D

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B7D	#FFFFFF	#000000	##FFFFFF
##631B7D	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B80

Deuteranopia (green-blind)

#17407B

Tritanopia (blue-blind)

#61314B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #631b7d;
/* rgb */ color: rgb(99, 27, 125);
/* oklch */ color: oklch(38.7% 0.161 315.2);

Tailwind

colors: {
  custom: {
    50: '#9360a3',
    500: '#631b7d',
    950: '#000000',
  },
}

SCSS

$custom: #631b7d;
$custom-light: #9360a3;
$custom-dark: #000000;

JSON

{
  "hex": "#631b7d",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 125
  },
  "hsl": {
    "h": 284.082,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3872,
    "c": 0.16061,
    "h": 315.2
  },
  "luminance": 0.04917
}

Semantic roles & 50–950 ramp

primary

#631B7D

secondary

#60B143

accent

#E7406D

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0D050F

muted

#7E797F

Preview Lab

Preview with #631B7D

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

Preview Lab → · Contrast checker → · Palette generator →