#631D9B#631D9B

#631D9B is a dark, vivid violet. Relative luminance 0.059; OKLCH L 41.3% C 0.188 H 304.1°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#631D9B
RGB	rgb(99, 29, 155)
HSL	hsl(273, 68%, 36%)
HSV	hsv(273, 81%, 61%)
CMYK	cmyk(36.1%, 81.3%, 0%, 39.2%)
CIE-LAB	lab(29.15, 52.67, -54.48)
CIE-LCH	lch(29.15, 75.78, 314.04°)
OKLab	oklab(41.33% 0.1052 -0.1554)
OKLCH	oklch(41.33% 0.188 304.1)
XYZ	xyz(11.5000, 5.8980, 31.5366)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D9B #559B1D

analogous

#241D9B #631D9B #9B1D94

triadic

#631D9B #9B631D #1D9B63

tetradic

#631D9B #9B241D #559B1D #1D949B

square

#631D9B #9B241D #559B1D #1D949B

split-complementary

#631D9B #949B1D #1D9B24

monochromatic

#210A34 #421367 #631D9B #8427CF #A153DF

Accessibility & contrast

On white

9.63

#631D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#631D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D9B

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D9B	#FFFFFF	#000000	##FFFFFF
##631D9B	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439E

Deuteranopia (green-blind)

#004599

Tritanopia (blue-blind)

#583F5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #631d9b;
/* rgb */ color: rgb(99, 29, 155);
/* oklch */ color: oklch(41.3% 0.188 304.1);

Tailwind

colors: {
  custom: {
    50: '#9563b9',
    500: '#631d9b',
    950: '#000000',
  },
}

SCSS

$custom: #631d9b;
$custom-light: #9563b9;
$custom-dark: #000000;

JSON

{
  "hex": "#631d9b",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 155
  },
  "hsl": {
    "h": 273.333,
    "s": 68.478,
    "l": 36.078
  },
  "oklch": {
    "l": 0.41333,
    "c": 0.18765,
    "h": 304.1
  },
  "luminance": 0.05898
}

Semantic roles & 50–950 ramp

primary

#631D9B

secondary

#84C252

accent

#EB3C8A

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #631D9B

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

Preview Lab → · Contrast checker → · Palette generator →