#638FF7#638FF7

#638FF7 is a light, vivid blue. Relative luminance 0.290; OKLCH L 66.7% C 0.162 H 265.1°. Best body text is #000000 at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#638FF7
RGB	rgb(99, 143, 247)
HSL	hsl(222, 90%, 68%)
HSV	hsv(222, 60%, 97%)
CMYK	cmyk(59.9%, 42.1%, 0%, 3.1%)
CIE-LAB	lab(60.79, 15.94, -56.61)
CIE-LCH	lch(60.79, 58.81, 285.72°)
OKLab	oklab(66.74% -0.0139 -0.1613)
OKLCH	oklch(66.74% 0.162 265.1)
XYZ	xyz(31.7508, 29.0102, 91.9040)
Luminance	0.2901 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638FF7 #F7CB63

analogous

#63D9F7 #638FF7 #8163F7

triadic

#638FF7 #F7638F #8FF763

tetradic

#638FF7 #F763D9 #F7CB63 #63F781

square

#638FF7 #F763D9 #F7CB63 #63F781

split-complementary

#638FF7 #F78163 #D9F763

monochromatic

#0B47D5 #2965F4 #638FF7 #9DB9FA #D7E3FD

Accessibility & contrast

On white

3.09

#638FF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.80

#638FF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638FF7

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638FF7	#FFFFFF	#000000	##000000
##638FF7	1.00	3.09	6.80	6.80
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.80	21.00	1.00	1.00
##000000	6.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#609AFB

Deuteranopia (green-blind)

#4B8CF5

Tritanopia (blue-blind)

#00A6B7

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #638ff7;
/* rgb */ color: rgb(99, 143, 247);
/* oklch */ color: oklch(66.7% 0.162 265.1);

Tailwind

colors: {
  custom: {
    50: '#9baffa',
    500: '#638ff7',
    950: '#000000',
  },
}

SCSS

$custom: #638ff7;
$custom-light: #9baffa;
$custom-dark: #000000;

JSON

{
  "hex": "#638ff7",
  "rgb": {
    "r": 99,
    "g": 143,
    "b": 247
  },
  "hsl": {
    "h": 222.162,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.66742,
    "c": 0.16186,
    "h": 265.1
  },
  "luminance": 0.29013
}

Semantic roles & 50–950 ramp

primary

#638FF7

secondary

#F2E4C4

accent

#A100E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638FF7

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

Preview Lab → · Contrast checker → · Palette generator →