#638AF7#638AF7

#638AF7 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.7% C 0.168 H 267.0°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#638AF7
RGB	rgb(99, 138, 247)
HSL	hsl(224, 90%, 68%)
HSV	hsv(224, 60%, 97%)
CMYK	cmyk(59.9%, 44.1%, 0%, 3.1%)
CIE-LAB	lab(59.47, 18.92, -58.72)
CIE-LCH	lch(59.47, 61.69, 287.86°)
OKLab	oklab(65.73% -0.0089 -0.1675)
OKLCH	oklch(65.73% 0.168 267)
XYZ	xyz(31.0169, 27.5424, 91.6593)
Luminance	0.2754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638AF7 #F7D063

analogous

#63D4F7 #638AF7 #8663F7

triadic

#638AF7 #F7638A #8AF763

tetradic

#638AF7 #F763D4 #F7D063 #63F786

square

#638AF7 #F763D4 #F7D063 #63F786

split-complementary

#638AF7 #F78663 #D4F763

monochromatic

#0B40D5 #295EF4 #638AF7 #9DB6FA #D7E1FD

Accessibility & contrast

On white

3.23

#638AF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.51

#638AF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638AF7

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638AF7	#FFFFFF	#000000	##000000
##638AF7	1.00	3.23	6.51	6.51
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.51	21.00	1.00	1.00
##000000	6.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5796FB

Deuteranopia (green-blind)

#4189F5

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #638af7;
/* rgb */ color: rgb(99, 138, 247);
/* oklch */ color: oklch(65.7% 0.168 267.0);

Tailwind

colors: {
  custom: {
    50: '#9babfa',
    500: '#638af7',
    950: '#000000',
  },
}

SCSS

$custom: #638af7;
$custom-light: #9babfa;
$custom-dark: #000000;

JSON

{
  "hex": "#638af7",
  "rgb": {
    "r": 99,
    "g": 138,
    "b": 247
  },
  "hsl": {
    "h": 224.189,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.6573,
    "c": 0.16773,
    "h": 267
  },
  "luminance": 0.27545
}

Semantic roles & 50–950 ramp

primary

#638AF7

secondary

#F2E6C4

accent

#A900E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638AF7

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

Preview Lab → · Contrast checker → · Palette generator →