#637EE2#637EE2

#637EE2 is a light, vivid blue. Relative luminance 0.231; OKLCH L 62.0% C 0.154 H 270.1°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#637EE2
RGB	rgb(99, 126, 226)
HSL	hsl(227, 69%, 64%)
HSV	hsv(227, 56%, 89%)
CMYK	cmyk(56.2%, 44.2%, 0%, 11.4%)
CIE-LAB	lab(55.14, 19.31, -53.98)
CIE-LCH	lch(55.14, 57.33, 289.69°)
OKLab	oklab(62.03% 0.0002 -0.1537)
OKLCH	oklch(62.03% 0.154 270.1)
XYZ	xyz(26.3294, 23.0634, 75.0010)
Luminance	0.2306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637EE2 #E2C763

analogous

#63BDE2 #637EE2 #8763E2

triadic

#637EE2 #E2637E #7EE263

tetradic

#637EE2 #E263BD #E2C763 #63E287

square

#637EE2 #E263BD #E2C763 #63E287

split-complementary

#637EE2 #E28763 #BDE263

monochromatic

#203DAB #2F53D8 #637EE2 #97A9EC #CAD3F5

Accessibility & contrast

On white

3.74

#637EE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#637EE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #637EE2

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637EE2	#FFFFFF	#000000	##000000
##637EE2	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#518AE6

Deuteranopia (green-blind)

#407FE0

Tritanopia (blue-blind)

#0F94A5

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #637ee2;
/* rgb */ color: rgb(99, 126, 226);
/* oklch */ color: oklch(62.0% 0.154 270.1);

Tailwind

colors: {
  custom: {
    50: '#98a3ec',
    500: '#637ee2',
    950: '#000000',
  },
}

SCSS

$custom: #637ee2;
$custom-light: #98a3ec;
$custom-dark: #000000;

JSON

{
  "hex": "#637ee2",
  "rgb": {
    "r": 99,
    "g": 126,
    "b": 226
  },
  "hsl": {
    "h": 227.244,
    "s": 68.649,
    "l": 63.725
  },
  "oklch": {
    "l": 0.62028,
    "c": 0.15371,
    "h": 270.1
  },
  "luminance": 0.23065
}

Semantic roles & 50–950 ramp

primary

#637EE2

secondary

#E7DDBA

accent

#A915D1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #637EE2

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

Preview Lab → · Contrast checker → · Palette generator →