#631F90#631F90

#631F90 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.6% C 0.175 H 307.5°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#631F90
RGB	rgb(99, 31, 144)
HSL	hsl(276, 65%, 34%)
HSV	hsv(276, 78%, 56%)
CMYK	cmyk(31.3%, 78.5%, 0%, 43.5%)
CIE-LAB	lab(28.50, 49.37, -48.78)
CIE-LCH	lch(28.50, 69.40, 315.34°)
OKLab	oklab(40.59% 0.1064 -0.1386)
OKLCH	oklch(40.59% 0.175 307.5)
XYZ	xyz(10.6685, 5.6464, 26.9080)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631F90 #4C901F

analogous

#2B1F90 #631F90 #901F85

triadic

#631F90 #90631F #1F9063

tetradic

#631F90 #902B1F #4C901F #1F8590

square

#631F90 #902B1F #4C901F #1F8590

split-complementary

#631F90 #85901F #1F902B

monochromatic

#1E092B #40145E #631F90 #862AC2 #A350D9

Accessibility & contrast

On white

9.86

#631F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#631F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631F90

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631F90	#FFFFFF	#000000	##FFFFFF
##631F90	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004193

Deuteranopia (green-blind)

#00448E

Tritanopia (blue-blind)

#5B3B57

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631f90;
/* rgb */ color: rgb(99, 31, 144);
/* oklch */ color: oklch(40.6% 0.175 307.5);

Tailwind

colors: {
  custom: {
    50: '#9463b1',
    500: '#631f90',
    950: '#000000',
  },
}

SCSS

$custom: #631f90;
$custom-light: #9463b1;
$custom-dark: #000000;

JSON

{
  "hex": "#631f90",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 144
  },
  "hsl": {
    "h": 276.106,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.40593,
    "c": 0.17478,
    "h": 307.5
  },
  "luminance": 0.05646
}

Semantic roles & 50–950 ramp

primary

#631F90

secondary

#7ABC4E

accent

#E84083

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #631F90

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

Preview Lab → · Contrast checker → · Palette generator →