#634FC9#634FC9

#634FC9 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.6% C 0.181 H 285.6°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#634FC9
RGB	rgb(99, 79, 201)
HSL	hsl(250, 53%, 55%)
HSV	hsv(250, 61%, 79%)
CMYK	cmyk(50.7%, 60.7%, 0%, 21.2%)
CIE-LAB	lab(41.94, 39.93, -60.99)
CIE-LCH	lch(41.94, 72.90, 303.21°)
OKLab	oklab(51.62% 0.0489 -0.1747)
OKLCH	oklch(51.62% 0.181 285.6)
XYZ	xyz(18.4811, 12.4607, 56.6784)
Luminance	0.1246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#634FC9 #B5C94F

analogous

#4F78C9 #634FC9 #A04FC9

triadic

#634FC9 #C9634F #4FC963

tetradic

#634FC9 #C94F78 #B5C94F #4FC9A0

square

#634FC9 #C94F78 #B5C94F #4FC9A0

split-complementary

#634FC9 #C9A04F #78C94F

monochromatic

#332579 #4633A7 #634FC9 #8D7ED7 #B6ADE6

Accessibility & contrast

On white

6.01

#634FC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#634FC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #634FC9

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##634FC9	#FFFFFF	#000000	##FFFFFF
##634FC9	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CD

Deuteranopia (green-blind)

#005FC6

Tritanopia (blue-blind)

#3D6C84

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #634fc9;
/* rgb */ color: rgb(99, 79, 201);
/* oklch */ color: oklch(51.6% 0.181 285.6);

Tailwind

colors: {
  custom: {
    50: '#9781da',
    500: '#634fc9',
    950: '#000000',
  },
}

SCSS

$custom: #634fc9;
$custom-light: #9781da;
$custom-dark: #000000;

JSON

{
  "hex": "#634fc9",
  "rgb": {
    "r": 99,
    "g": 79,
    "b": 201
  },
  "hsl": {
    "h": 249.836,
    "s": 53.043,
    "l": 54.902
  },
  "oklch": {
    "l": 0.5162,
    "c": 0.1814,
    "h": 285.6
  },
  "luminance": 0.12462
}

Semantic roles & 50–950 ramp

primary

#634FC9

secondary

#CBD4A0

accent

#DC4BC5

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #634FC9

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

Preview Lab → · Contrast checker → · Palette generator →