#634EA3#634EA3

#634EA3 is a mid, vivid violet. Relative luminance 0.107; OKLCH L 48.7% C 0.132 H 292.2°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#634EA3
RGB	rgb(99, 78, 163)
HSL	hsl(255, 35%, 47%)
HSV	hsv(255, 52%, 64%)
CMYK	cmyk(39.3%, 52.1%, 0%, 36.1%)
CIE-LAB	lab(39.15, 29.33, -43.15)
CIE-LCH	lch(39.15, 52.18, 304.20°)
OKLab	oklab(48.74% 0.0498 -0.1223)
OKLCH	oklch(48.74% 0.132 292.2)
XYZ	xyz(14.4791, 10.7454, 35.9544)
Luminance	0.1075 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#634EA3 #8EA34E

analogous

#4E63A3 #634EA3 #8E4EA3

triadic

#634EA3 #A3634E #4EA363

tetradic

#634EA3 #A34E63 #8EA34E #4EA38E

square

#634EA3 #A34E63 #8EA34E #4EA38E

split-complementary

#634EA3 #A38E4E #63A34E

monochromatic

#312650 #4A3A7A #634EA3 #8572BC #A99CD0

Accessibility & contrast

On white

6.67

#634EA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#634EA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #634EA3

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##634EA3	#FFFFFF	#000000	##FFFFFF
##634EA3	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5DA6

Deuteranopia (green-blind)

#2F5BA1

Tritanopia (blue-blind)

#525F71

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #634ea3;
/* rgb */ color: rgb(99, 78, 163);
/* oklch */ color: oklch(48.7% 0.132 292.2);

Tailwind

colors: {
  custom: {
    50: '#9380bf',
    500: '#634ea3',
    950: '#000000',
  },
}

SCSS

$custom: #634ea3;
$custom-light: #9380bf;
$custom-dark: #000000;

JSON

{
  "hex": "#634ea3",
  "rgb": {
    "r": 99,
    "g": 78,
    "b": 163
  },
  "hsl": {
    "h": 254.824,
    "s": 35.27,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48743,
    "c": 0.13202,
    "h": 292.2
  },
  "luminance": 0.10746
}

Semantic roles & 50–950 ramp

primary

#634EA3

secondary

#B1BC91

accent

#CB5CB0

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #634EA3

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

Preview Lab → · Contrast checker → · Palette generator →