#638AE7#638AE7

#638AE7 is a light, vivid blue. Relative luminance 0.266; OKLCH L 64.8% C 0.146 H 265.4°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#638AE7
RGB	rgb(99, 138, 231)
HSL	hsl(222, 73%, 65%)
HSV	hsv(222, 57%, 91%)
CMYK	cmyk(57.1%, 40.3%, 0%, 9.4%)
CIE-LAB	lab(58.60, 13.71, -51.26)
CIE-LCH	lch(58.60, 53.06, 284.98°)
OKLab	oklab(64.78% -0.0117 -0.1456)
OKLCH	oklch(64.78% 0.146 265.4)
XYZ	xyz(28.6530, 26.5968, 79.2096)
Luminance	0.2660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638AE7 #E7C063

analogous

#63CCE7 #638AE7 #7E63E7

triadic

#638AE7 #E7638A #8AE763

tetradic

#638AE7 #E763CC #E7C063 #63E77E

square

#638AE7 #E763CC #E7C063 #63E77E

split-complementary

#638AE7 #E77E63 #CCE763

monochromatic

#1C49B4 #2E62DF #638AE7 #98B2EF #CDDAF7

Accessibility & contrast

On white

3.32

#638AE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#638AE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638AE7

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638AE7	#FFFFFF	#000000	##000000
##638AE7	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6293EB

Deuteranopia (green-blind)

#5187E5

Tritanopia (blue-blind)

#009FAD

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #638ae7;
/* rgb */ color: rgb(99, 138, 231);
/* oklch */ color: oklch(64.8% 0.146 265.4);

Tailwind

colors: {
  custom: {
    50: '#99abef',
    500: '#638ae7',
    950: '#000000',
  },
}

SCSS

$custom: #638ae7;
$custom-light: #99abef;
$custom-dark: #000000;

JSON

{
  "hex": "#638ae7",
  "rgb": {
    "r": 99,
    "g": 138,
    "b": 231
  },
  "hsl": {
    "h": 222.273,
    "s": 73.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.64775,
    "c": 0.14607,
    "h": 265.4
  },
  "luminance": 0.26599
}

Semantic roles & 50–950 ramp

primary

#638AE7

secondary

#EADCBC

accent

#9B10D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #638AE7

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

Preview Lab → · Contrast checker → · Palette generator →