#637DF2#637DF2

#637DF2 is a light, vivid blue. Relative luminance 0.237; OKLCH L 62.8% C 0.177 H 271.1°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#637DF2
RGB	rgb(99, 125, 242)
HSL	hsl(229, 85%, 67%)
HSV	hsv(229, 59%, 95%)
CMYK	cmyk(59.1%, 48.3%, 0%, 5.1%)
CIE-LAB	lab(55.81, 25.12, -61.82)
CIE-LCH	lch(55.81, 66.72, 292.11°)
OKLab	oklab(62.85% 0.0034 -0.1767)
OKLCH	oklch(62.85% 0.177 271.1)
XYZ	xyz(28.5009, 23.7284, 87.0653)
Luminance	0.2373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637DF2 #F2D863

analogous

#63C5F2 #637DF2 #9163F2

triadic

#637DF2 #F2637D #7DF263

tetradic

#637DF2 #F263C5 #F2D863 #63F291

square

#637DF2 #F263C5 #F2D863 #63F291

split-complementary

#637DF2 #F29163 #C5F263

monochromatic

#1132CA #2B4EED #637DF2 #9BACF7 #D4DBFB

Accessibility & contrast

On white

3.65

#637DF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#637DF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #637DF2

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637DF2	#FFFFFF	#000000	##000000
##637DF2	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#418CF6

Deuteranopia (green-blind)

#2780F0

Tritanopia (blue-blind)

#0098AC

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #637df2;
/* rgb */ color: rgb(99, 125, 242);
/* oklch */ color: oklch(62.8% 0.177 271.1);

Tailwind

colors: {
  custom: {
    50: '#9ba2f7',
    500: '#637df2',
    950: '#000000',
  },
}

SCSS

$custom: #637df2;
$custom-light: #9ba2f7;
$custom-dark: #000000;

JSON

{
  "hex": "#637df2",
  "rgb": {
    "r": 99,
    "g": 125,
    "b": 242
  },
  "hsl": {
    "h": 229.091,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.62846,
    "c": 0.17678,
    "h": 271.1
  },
  "luminance": 0.23731
}

Semantic roles & 50–950 ramp

primary

#637DF2

secondary

#EFE7C2

accent

#B904E1

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0F17

muted

#7F7E85

Preview Lab

Preview with #637DF2

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

Preview Lab → · Contrast checker → · Palette generator →