#634FCC#634FCC

#634FCC is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.8% C 0.185 H 285.3°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#634FCC
RGB	rgb(99, 79, 204)
HSL	hsl(250, 55%, 55%)
HSV	hsv(250, 61%, 80%)
CMYK	cmyk(51.5%, 61.3%, 0%, 20%)
CIE-LAB	lab(42.16, 40.83, -62.37)
CIE-LCH	lch(42.16, 74.54, 303.21°)
OKLab	oklab(51.85% 0.0487 -0.1787)
OKLCH	oklch(51.85% 0.185 285.3)
XYZ	xyz(18.8374, 12.6033, 58.5551)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#634FCC #B8CC4F

analogous

#4F79CC #634FCC #A14FCC

triadic

#634FCC #CC634F #4FCC63

tetradic

#634FCC #CC4F79 #B8CC4F #4FCCA1

square

#634FCC #CC4F79 #B8CC4F #4FCCA1

split-complementary

#634FCC #CCA14F #79CC4F

monochromatic

#32247D #4532AC #634FCC #8D7EDA #B7AEE7

Accessibility & contrast

On white

5.96

#634FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#634FCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #634FCC

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##634FCC	#FFFFFF	#000000	##FFFFFF
##634FCC	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D0

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#3A6D86

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #634fcc;
/* rgb */ color: rgb(99, 79, 204);
/* oklch */ color: oklch(51.8% 0.185 285.3);

Tailwind

colors: {
  custom: {
    50: '#9881dc',
    500: '#634fcc',
    950: '#000000',
  },
}

SCSS

$custom: #634fcc;
$custom-light: #9881dc;
$custom-dark: #000000;

JSON

{
  "hex": "#634fcc",
  "rgb": {
    "r": 99,
    "g": 79,
    "b": 204
  },
  "hsl": {
    "h": 249.6,
    "s": 55.066,
    "l": 55.49
  },
  "oklch": {
    "l": 0.5185,
    "c": 0.18525,
    "h": 285.3
  },
  "luminance": 0.12604
}

Semantic roles & 50–950 ramp

primary

#634FCC

secondary

#CDD5A1

accent

#DE49C7

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #634FCC

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

Preview Lab → · Contrast checker → · Palette generator →