#631B68#631B68

#631B68 is a dark, vivid purple. Relative luminance 0.044; OKLCH L 37.2% C 0.141 H 325.1°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#631B68
RGB	rgb(99, 27, 104)
HSL	hsl(296, 59%, 26%)
HSV	hsv(296, 74%, 41%)
CMYK	cmyk(4.8%, 74%, 0%, 59.2%)
CIE-LAB	lab(25.07, 42.45, -28.99)
CIE-LCH	lch(25.07, 51.40, 325.66°)
OKLab	oklab(37.24% 0.1158 -0.0806)
OKLCH	oklch(37.24% 0.141 325.1)
XYZ	xyz(8.0360, 4.4365, 13.5271)
Luminance	0.0444 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B68 #20681B

analogous

#3C1B68 #631B68 #681B46

triadic

#631B68 #68631B #1B6863

tetradic

#631B68 #683C1B #20681B #1B4668

square

#631B68 #683C1B #20681B #1B4668

split-complementary

#631B68 #46681B #1B683C

monochromatic

#170618 #350E37 #631B68 #912899 #C034C9

Accessibility & contrast

On white

11.13

#631B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#631B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B68

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B68	#FFFFFF	#000000	##FFFFFF
##631B68	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07366A

Deuteranopia (green-blind)

#2B3E66

Tritanopia (blue-blind)

#65283F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #631b68;
/* rgb */ color: rgb(99, 27, 104);
/* oklch */ color: oklch(37.2% 0.141 325.1);

Tailwind

colors: {
  custom: {
    50: '#925f93',
    500: '#631b68',
    950: '#000000',
  },
}

SCSS

$custom: #631b68;
$custom-light: #925f93;
$custom-dark: #000000;

JSON

{
  "hex": "#631b68",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 104
  },
  "hsl": {
    "h": 296.104,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.37242,
    "c": 0.14106,
    "h": 325.1
  },
  "luminance": 0.04436
}

Semantic roles & 50–950 ramp

primary

#631B68

secondary

#489D42

accent

#E24650

background

#F9F5F9

surface

#F2EAF1

border

#CCC6CB

text

#0D050D

muted

#7E797E

Preview Lab

Preview with #631B68

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

Preview Lab → · Contrast checker → · Palette generator →