#638AEA#638AEA

#638AEA is a light, vivid blue. Relative luminance 0.268; OKLCH L 65.0% C 0.150 H 265.7°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#638AEA
RGB	rgb(99, 138, 234)
HSL	hsl(223, 76%, 65%)
HSV	hsv(223, 58%, 92%)
CMYK	cmyk(57.7%, 41%, 0%, 8.2%)
CIE-LAB	lab(58.76, 14.68, -52.67)
CIE-LCH	lch(58.76, 54.68, 285.58°)
OKLab	oklab(64.95% -0.0112 -0.1497)
OKLCH	oklch(64.95% 0.15 265.7)
XYZ	xyz(29.0803, 26.7678, 81.4602)
Luminance	0.2677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638AEA #EAC363

analogous

#63CDEA #638AEA #8063EA

triadic

#638AEA #EA638A #8AEA63

tetradic

#638AEA #EA63CD #EAC363 #63EA80

square

#638AEA #EA63CD #EAC363 #63EA80

split-complementary

#638AEA #EA8063 #CDEA63

monochromatic

#1947BA #2D62E3 #638AEA #99B2F1 #CFDBF9

Accessibility & contrast

On white

3.31

#638AEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#638AEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638AEA

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638AEA	#FFFFFF	#000000	##000000
##638AEA	1.00	3.31	6.35	6.35
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6094EE

Deuteranopia (green-blind)

#4E88E8

Tritanopia (blue-blind)

#009FAF

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #638aea;
/* rgb */ color: rgb(99, 138, 234);
/* oklch */ color: oklch(65.0% 0.150 265.7);

Tailwind

colors: {
  custom: {
    50: '#99abf1',
    500: '#638aea',
    950: '#000000',
  },
}

SCSS

$custom: #638aea;
$custom-light: #99abf1;
$custom-dark: #000000;

JSON

{
  "hex": "#638aea",
  "rgb": {
    "r": 99,
    "g": 138,
    "b": 234
  },
  "hsl": {
    "h": 222.667,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.6495,
    "c": 0.15016,
    "h": 265.7
  },
  "luminance": 0.2677
}

Semantic roles & 50–950 ramp

primary

#638AEA

secondary

#EBDEBE

accent

#9E0DD8

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #638AEA

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

Preview Lab → · Contrast checker → · Palette generator →