#638CED#638CED

#638CED is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.5% C 0.152 H 265.2°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#638CED
RGB	rgb(99, 140, 237)
HSL	hsl(222, 79%, 66%)
HSV	hsv(222, 58%, 93%)
CMYK	cmyk(58.2%, 40.9%, 0%, 7.1%)
CIE-LAB	lab(59.45, 14.46, -53.23)
CIE-LCH	lch(59.45, 55.16, 285.20°)
OKLab	oklab(65.54% -0.0127 -0.1514)
OKLCH	oklch(65.54% 0.152 265.2)
XYZ	xyz(29.8045, 27.5208, 83.8458)
Luminance	0.2752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638CED #EDC463

analogous

#63D1ED #638CED #7F63ED

triadic

#638CED #ED638C #8CED63

tetradic

#638CED #ED63D1 #EDC463 #63ED7F

square

#638CED #ED63D1 #EDC463 #63ED7F

split-complementary

#638CED #ED7F63 #D1ED63

monochromatic

#1648C0 #2C64E7 #638CED #9AB4F3 #D1DDFA

Accessibility & contrast

On white

3.23

#638CED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#638CED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638CED

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638CED	#FFFFFF	#000000	##000000
##638CED	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6296F1

Deuteranopia (green-blind)

#4F89EB

Tritanopia (blue-blind)

#00A2B1

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #638ced;
/* rgb */ color: rgb(99, 140, 237);
/* oklch */ color: oklch(65.5% 0.152 265.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#638ced",
  "rgb": {
    "r": 99,
    "g": 140,
    "b": 237
  },
  "hsl": {
    "h": 222.174,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.65537,
    "c": 0.15188,
    "h": 265.2
  },
  "luminance": 0.27523
}

Semantic roles & 50–950 ramp

primary

#638CED

secondary

#EDDFBF

accent

#9D0ADC

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638CED

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

Preview Lab → · Contrast checker → · Palette generator →