#638DF2#638DF2

#638DF2 is a light, vivid blue. Relative luminance 0.281; OKLCH L 66.0% C 0.157 H 265.3°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#638DF2
RGB	rgb(99, 141, 242)
HSL	hsl(222, 85%, 67%)
HSV	hsv(222, 59%, 95%)
CMYK	cmyk(59.1%, 41.7%, 0%, 5.1%)
CIE-LAB	lab(59.99, 15.49, -55.14)
CIE-LCH	lch(59.99, 57.27, 285.70°)
OKLab	oklab(66.04% -0.0128 -0.1569)
OKLCH	oklch(66.04% 0.157 265.3)
XYZ	xyz(30.6920, 28.1106, 87.7957)
Luminance	0.2811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638DF2 #F2C863

analogous

#63D4F2 #638DF2 #8163F2

triadic

#638DF2 #F2638D #8DF263

tetradic

#638DF2 #F263D4 #F2C863 #63F281

square

#638DF2 #F263D4 #F2C863 #63F281

split-complementary

#638DF2 #F28163 #D4F263

monochromatic

#1147CA #2B64ED #638DF2 #9BB6F7 #D4E0FB

Accessibility & contrast

On white

3.17

#638DF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#638DF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638DF2

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638DF2	#FFFFFF	#000000	##000000
##638DF2	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6098F6

Deuteranopia (green-blind)

#4C8BF0

Tritanopia (blue-blind)

#00A4B4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #638df2;
/* rgb */ color: rgb(99, 141, 242);
/* oklch */ color: oklch(66.0% 0.157 265.3);

Tailwind

colors: {
  custom: {
    50: '#9aadf7',
    500: '#638df2',
    950: '#000000',
  },
}

SCSS

$custom: #638df2;
$custom-light: #9aadf7;
$custom-dark: #000000;

JSON

{
  "hex": "#638df2",
  "rgb": {
    "r": 99,
    "g": 141,
    "b": 242
  },
  "hsl": {
    "h": 222.378,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.66036,
    "c": 0.15747,
    "h": 265.3
  },
  "luminance": 0.28113
}

Semantic roles & 50–950 ramp

primary

#638DF2

secondary

#EFE2C2

accent

#A004E1

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638DF2

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

Preview Lab → · Contrast checker → · Palette generator →