#634FCB#634FCB

#634FCB is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.8% C 0.184 H 285.4°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#634FCB
RGB	rgb(99, 79, 203)
HSL	hsl(250, 54%, 55%)
HSV	hsv(250, 61%, 80%)
CMYK	cmyk(51.2%, 61.1%, 0%, 20.4%)
CIE-LAB	lab(42.09, 40.53, -61.91)
CIE-LCH	lch(42.09, 74.00, 303.21°)
OKLab	oklab(51.77% 0.0488 -0.1774)
OKLCH	oklch(51.77% 0.184 285.4)
XYZ	xyz(18.7178, 12.5555, 57.9255)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#634FCB #B7CB4F

analogous

#4F79CB #634FCB #A14FCB

triadic

#634FCB #CB634F #4FCB63

tetradic

#634FCB #CB4F79 #B7CB4F #4FCBA1

square

#634FCB #CB4F79 #B7CB4F #4FCBA1

split-complementary

#634FCB #CBA14F #79CB4F

monochromatic

#32247B #4632AA #634FCB #8D7ED9 #B7ADE7

Accessibility & contrast

On white

5.98

#634FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#634FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #634FCB

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##634FCB	#FFFFFF	#000000	##FFFFFF
##634FCB	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CF

Deuteranopia (green-blind)

#0060C8

Tritanopia (blue-blind)

#3B6C85

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #634fcb;
/* rgb */ color: rgb(99, 79, 203);
/* oklch */ color: oklch(51.8% 0.184 285.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#634fcb",
  "rgb": {
    "r": 99,
    "g": 79,
    "b": 203
  },
  "hsl": {
    "h": 249.677,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.51773,
    "c": 0.18398,
    "h": 285.4
  },
  "luminance": 0.12556
}

Semantic roles & 50–950 ramp

primary

#634FCB

secondary

#CCD5A1

accent

#DE4AC6

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #634FCB

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

Preview Lab → · Contrast checker → · Palette generator →