#631E91#631E91

#631E91 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.6% C 0.177 H 307.3°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#631E91
RGB	rgb(99, 30, 145)
HSL	hsl(276, 66%, 34%)
HSV	hsv(276, 79%, 57%)
CMYK	cmyk(31.7%, 79.3%, 0%, 43.1%)
CIE-LAB	lab(28.45, 49.99, -49.49)
CIE-LCH	lch(28.45, 70.34, 315.29°)
OKLab	oklab(40.58% 0.1071 -0.1407)
OKLCH	oklch(40.58% 0.177 307.3)
XYZ	xyz(10.7196, 5.6257, 27.3037)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631E91 #4C911E

analogous

#2A1E91 #631E91 #911E86

triadic

#631E91 #91631E #1E9163

tetradic

#631E91 #912A1E #4C911E #1E8691

square

#631E91 #912A1E #4C911E #1E8691

split-complementary

#631E91 #86911E #1E912A

monochromatic

#1E092C #40145E #631E91 #8628C4 #A34FDB

Accessibility & contrast

On white

9.88

#631E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#631E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631E91

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631E91	#FFFFFF	#000000	##FFFFFF
##631E91	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004194

Deuteranopia (green-blind)

#00448F

Tritanopia (blue-blind)

#5B3B57

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631e91;
/* rgb */ color: rgb(99, 30, 145);
/* oklch */ color: oklch(40.6% 0.177 307.3);

Tailwind

colors: {
  custom: {
    50: '#9462b2',
    500: '#631e91',
    950: '#000000',
  },
}

SCSS

$custom: #631e91;
$custom-light: #9462b2;
$custom-dark: #000000;

JSON

{
  "hex": "#631e91",
  "rgb": {
    "r": 99,
    "g": 30,
    "b": 145
  },
  "hsl": {
    "h": 276,
    "s": 65.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.4058,
    "c": 0.17682,
    "h": 307.3
  },
  "luminance": 0.05626
}

Semantic roles & 50–950 ramp

primary

#631E91

secondary

#7ABD4D

accent

#E93F83

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #631E91

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

Preview Lab → · Contrast checker → · Palette generator →