#638FF2#638FF2

#638FF2 is a light, vivid blue. Relative luminance 0.287; OKLCH L 66.4% C 0.155 H 264.5°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#638FF2
RGB	rgb(99, 143, 242)
HSL	hsl(222, 85%, 67%)
HSV	hsv(222, 59%, 95%)
CMYK	cmyk(59.1%, 40.9%, 0%, 5.1%)
CIE-LAB	lab(60.52, 14.30, -54.29)
CIE-LCH	lch(60.52, 56.14, 284.76°)
OKLab	oklab(66.45% -0.0149 -0.1544)
OKLCH	oklch(66.45% 0.155 264.5)
XYZ	xyz(30.9896, 28.7058, 87.8949)
Luminance	0.2871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638FF2 #F2C663

analogous

#63D7F2 #638FF2 #7F63F2

triadic

#638FF2 #F2638F #8FF263

tetradic

#638FF2 #F263D7 #F2C663 #63F27F

square

#638FF2 #F263D7 #F2C663 #63F27F

split-complementary

#638FF2 #F27F63 #D7F263

monochromatic

#114ACA #2B66ED #638FF2 #9BB8F7 #D4E0FB

Accessibility & contrast

On white

3.11

#638FF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#638FF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638FF2

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638FF2	#FFFFFF	#000000	##000000
##638FF2	1.00	3.11	6.74	6.74
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6499F6

Deuteranopia (green-blind)

#508CF0

Tritanopia (blue-blind)

#00A5B5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #638ff2;
/* rgb */ color: rgb(99, 143, 242);
/* oklch */ color: oklch(66.4% 0.155 264.5);

Tailwind

colors: {
  custom: {
    50: '#9aaff7',
    500: '#638ff2',
    950: '#000000',
  },
}

SCSS

$custom: #638ff2;
$custom-light: #9aaff7;
$custom-dark: #000000;

JSON

{
  "hex": "#638ff2",
  "rgb": {
    "r": 99,
    "g": 143,
    "b": 242
  },
  "hsl": {
    "h": 221.538,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.66447,
    "c": 0.15515,
    "h": 264.5
  },
  "luminance": 0.28708
}

Semantic roles & 50–950 ramp

primary

#638FF2

secondary

#EFE1C2

accent

#9D04E1

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638FF2

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

Preview Lab → · Contrast checker → · Palette generator →