#631B97#631B97

#631B97 is a dark, vivid violet. Relative luminance 0.057; OKLCH L 40.8% C 0.186 H 305.6°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#631B97
RGB	rgb(99, 27, 151)
HSL	hsl(275, 70%, 35%)
HSV	hsv(275, 82%, 59%)
CMYK	cmyk(34.4%, 82.1%, 0%, 40.8%)
CIE-LAB	lab(28.57, 52.46, -52.98)
CIE-LCH	lch(28.57, 74.56, 314.72°)
OKLab	oklab(40.82% 0.1079 -0.151)
OKLCH	oklch(40.82% 0.186 305.6)
XYZ	xyz(11.1222, 5.6710, 29.7808)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.86

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B97 #4F971B

analogous

#251B97 #631B97 #971B8D

triadic

#631B97 #97631B #1B9763

tetradic

#631B97 #97251B #4F971B #1B8D97

square

#631B97 #97251B #4F971B #1B8D97

split-complementary

#631B97 #8D971B #1B9725

monochromatic

#1F082F #411263 #631B97 #8524CB #A24DDF

Accessibility & contrast

On white

9.84

#631B97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#631B97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B97

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B97	#FFFFFF	#000000	##FFFFFF
##631B97	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419A

Deuteranopia (green-blind)

#004495

Tritanopia (blue-blind)

#593D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #631b97;
/* rgb */ color: rgb(99, 27, 151);
/* oklch */ color: oklch(40.8% 0.186 305.6);

Tailwind

colors: {
  custom: {
    50: '#9561b6',
    500: '#631b97',
    950: '#000000',
  },
}

SCSS

$custom: #631b97;
$custom-light: #9561b6;
$custom-dark: #000000;

JSON

{
  "hex": "#631b97",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 151
  },
  "hsl": {
    "h": 274.839,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.40818,
    "c": 0.18559,
    "h": 305.6
  },
  "luminance": 0.05671
}

Semantic roles & 50–950 ramp

primary

#631B97

secondary

#7DC14C

accent

#EC3B86

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631B97

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

Preview Lab → · Contrast checker → · Palette generator →