#631B9F#631B9F

#631B9F is a dark, vivid violet. Relative luminance 0.059; OKLCH L 41.5% C 0.193 H 303.1°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#631B9F
RGB	rgb(99, 27, 159)
HSL	hsl(273, 71%, 36%)
HSV	hsv(273, 83%, 62%)
CMYK	cmyk(37.7%, 83%, 0%, 37.6%)
CIE-LAB	lab(29.26, 54.30, -56.74)
CIE-LCH	lch(29.26, 78.54, 313.74°)
OKLab	oklab(41.51% 0.1055 -0.162)
OKLCH	oklch(41.51% 0.193 303.1)
XYZ	xyz(11.7940, 5.9397, 33.3193)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B9F #579F1B

analogous

#211B9F #631B9F #9F1B99

triadic

#631B9F #9F631B #1B9F63

tetradic

#631B9F #9F211B #579F1B #1B999F

square

#631B9F #9F211B #579F1B #1B999F

split-complementary

#631B9F #999F1B #1B9F21

monochromatic

#220936 #42126B #631B9F #8424D3 #A153E2

Accessibility & contrast

On white

9.60

#631B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#631B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B9F

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B9F	#FFFFFF	#000000	##FFFFFF
##631B9F	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A2

Deuteranopia (green-blind)

#00459D

Tritanopia (blue-blind)

#56405F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #631b9f;
/* rgb */ color: rgb(99, 27, 159);
/* oklch */ color: oklch(41.5% 0.193 303.1);

Tailwind

colors: {
  custom: {
    50: '#9662bc',
    500: '#631b9f',
    950: '#000000',
  },
}

SCSS

$custom: #631b9f;
$custom-light: #9662bc;
$custom-dark: #000000;

JSON

{
  "hex": "#631b9f",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 159
  },
  "hsl": {
    "h": 272.727,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.41514,
    "c": 0.19334,
    "h": 303.1
  },
  "luminance": 0.0594
}

Semantic roles & 50–950 ramp

primary

#631B9F

secondary

#86C551

accent

#EE3A8C

background

#F9F6FB

surface

#F2EBF7

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #631B9F

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

Preview Lab → · Contrast checker → · Palette generator →