#638DED#638DED

#638DED is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.7% C 0.151 H 264.8°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#638DED
RGB	rgb(99, 141, 237)
HSL	hsl(222, 79%, 66%)
HSV	hsv(222, 58%, 93%)
CMYK	cmyk(58.2%, 40.5%, 0%, 7.1%)
CIE-LAB	lab(59.72, 13.87, -52.80)
CIE-LCH	lch(59.72, 54.59, 284.71°)
OKLab	oklab(65.74% -0.0137 -0.1501)
OKLCH	oklch(65.74% 0.151 264.8)
XYZ	xyz(29.9513, 27.8143, 83.8947)
Luminance	0.2782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638DED #EDC363

analogous

#63D2ED #638DED #7E63ED

triadic

#638DED #ED638D #8DED63

tetradic

#638DED #ED63D2 #EDC363 #63ED7E

square

#638DED #ED63D2 #EDC363 #63ED7E

split-complementary

#638DED #ED7E63 #D2ED63

monochromatic

#164AC0 #2C65E7 #638DED #9AB5F3 #D1DDFA

Accessibility & contrast

On white

3.20

#638DED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#638DED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638DED

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638DED	#FFFFFF	#000000	##000000
##638DED	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6397F1

Deuteranopia (green-blind)

#518AEB

Tritanopia (blue-blind)

#00A2B1

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #638ded;
/* rgb */ color: rgb(99, 141, 237);
/* oklch */ color: oklch(65.7% 0.151 264.8);

Tailwind

colors: {
  custom: {
    50: '#9aadf3',
    500: '#638ded',
    950: '#000000',
  },
}

SCSS

$custom: #638ded;
$custom-light: #9aadf3;
$custom-dark: #000000;

JSON

{
  "hex": "#638ded",
  "rgb": {
    "r": 99,
    "g": 141,
    "b": 237
  },
  "hsl": {
    "h": 221.739,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.65743,
    "c": 0.15072,
    "h": 264.8
  },
  "luminance": 0.27817
}

Semantic roles & 50–950 ramp

primary

#638DED

secondary

#EDDFBF

accent

#9C0ADC

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638DED

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

Preview Lab → · Contrast checker → · Palette generator →