#638FF6#638FF6

#638FF6 is a light, vivid blue. Relative luminance 0.290; OKLCH L 66.7% C 0.161 H 265.0°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#638FF6
RGB	rgb(99, 143, 246)
HSL	hsl(222, 89%, 68%)
HSV	hsv(222, 60%, 96%)
CMYK	cmyk(59.8%, 41.9%, 0%, 3.5%)
CIE-LAB	lab(60.74, 15.61, -56.15)
CIE-LCH	lch(60.74, 58.28, 285.53°)
OKLab	oklab(66.68% -0.0141 -0.1599)
OKLCH	oklch(66.68% 0.161 265)
XYZ	xyz(31.5969, 28.9487, 91.0935)
Luminance	0.2895 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638FF6 #F6CA63

analogous

#63D8F6 #638FF6 #8163F6

triadic

#638FF6 #F6638F #8FF663

tetradic

#638FF6 #F663D8 #F6CA63 #63F681

square

#638FF6 #F663D8 #F6CA63 #63F681

split-complementary

#638FF6 #F68163 #D8F663

monochromatic

#0C48D2 #2965F3 #638FF6 #9DB9F9 #D7E2FD

Accessibility & contrast

On white

3.09

#638FF6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#638FF6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638FF6

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638FF6	#FFFFFF	#000000	##000000
##638FF6	1.00	3.09	6.79	6.79
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.79	21.00	1.00	1.00
##000000	6.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#619AFA

Deuteranopia (green-blind)

#4C8CF4

Tritanopia (blue-blind)

#00A6B6

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #638ff6;
/* rgb */ color: rgb(99, 143, 246);
/* oklch */ color: oklch(66.7% 0.161 265.0);

Tailwind

colors: {
  custom: {
    50: '#9baffa',
    500: '#638ff6',
    950: '#000000',
  },
}

SCSS

$custom: #638ff6;
$custom-light: #9baffa;
$custom-dark: #000000;

JSON

{
  "hex": "#638ff6",
  "rgb": {
    "r": 99,
    "g": 143,
    "b": 246
  },
  "hsl": {
    "h": 222.041,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.66682,
    "c": 0.16052,
    "h": 265
  },
  "luminance": 0.28951
}

Semantic roles & 50–950 ramp

primary

#638FF6

secondary

#F1E4C4

accent

#A100E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638FF6

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

Preview Lab → · Contrast checker → · Palette generator →