#638BED#638BED

#638BED is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.3% C 0.153 H 265.6°. Best body text is #000000 at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#638BED
RGB	rgb(99, 139, 237)
HSL	hsl(223, 79%, 66%)
HSV	hsv(223, 58%, 93%)
CMYK	cmyk(58.2%, 41.4%, 0%, 7.1%)
CIE-LAB	lab(59.19, 15.06, -53.65)
CIE-LCH	lch(59.19, 55.72, 285.68°)
OKLab	oklab(65.33% -0.0116 -0.1526)
OKLCH	oklch(65.33% 0.153 265.6)
XYZ	xyz(29.6591, 27.2299, 83.7973)
Luminance	0.2723 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638BED #EDC563

analogous

#63D0ED #638BED #8063ED

triadic

#638BED #ED638B #8BED63

tetradic

#638BED #ED63D0 #EDC563 #63ED80

square

#638BED #ED63D0 #EDC563 #63ED80

split-complementary

#638BED #ED8063 #D0ED63

monochromatic

#1647C0 #2C62E7 #638BED #9AB4F3 #D1DDFA

Accessibility & contrast

On white

3.26

#638BED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.45

#638BED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638BED

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638BED	#FFFFFF	#000000	##000000
##638BED	1.00	3.26	6.45	6.45
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.45	21.00	1.00	1.00
##000000	6.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6095F1

Deuteranopia (green-blind)

#4D89EB

Tritanopia (blue-blind)

#00A1B0

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #638bed;
/* rgb */ color: rgb(99, 139, 237);
/* oklch */ color: oklch(65.3% 0.153 265.6);

Tailwind

colors: {
  custom: {
    50: '#9aacf3',
    500: '#638bed',
    950: '#000000',
  },
}

SCSS

$custom: #638bed;
$custom-light: #9aacf3;
$custom-dark: #000000;

JSON

{
  "hex": "#638bed",
  "rgb": {
    "r": 99,
    "g": 139,
    "b": 237
  },
  "hsl": {
    "h": 222.609,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.65331,
    "c": 0.15305,
    "h": 265.6
  },
  "luminance": 0.27232
}

Semantic roles & 50–950 ramp

primary

#638BED

secondary

#EDDFBF

accent

#9F0ADC

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638BED

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

Preview Lab → · Contrast checker → · Palette generator →