#636FE5#636FE5

#636FE5 is a mid, vivid blue. Relative luminance 0.197; OKLCH L 59.3% C 0.177 H 275.3°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#636FE5
RGB	rgb(99, 111, 229)
HSL	hsl(234, 71%, 64%)
HSV	hsv(234, 57%, 90%)
CMYK	cmyk(56.8%, 51.5%, 0%, 10.2%)
CIE-LAB	lab(51.47, 29.41, -61.55)
CIE-LCH	lch(51.47, 68.21, 295.54°)
OKLab	oklab(59.3% 0.0162 -0.1761)
OKLCH	oklch(59.3% 0.177 275.3)
XYZ	xyz(24.9683, 19.6769, 76.5958)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636FE5 #E5D963

analogous

#63B0E5 #636FE5 #9863E5

triadic

#636FE5 #E5636F #6FE563

tetradic

#636FE5 #E563B0 #E5D963 #63E598

square

#636FE5 #E563B0 #E5D963 #63E598

split-complementary

#636FE5 #E59863 #B0E563

monochromatic

#1D2BB0 #2F3FDC #636FE5 #979FEE #CCD0F6

Accessibility & contrast

On white

4.25

#636FE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#636FE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636FE5

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636FE5	#FFFFFF	#000000	##000000
##636FE5	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D80E9

Deuteranopia (green-blind)

#0D75E3

Tritanopia (blue-blind)

#0E8A9F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #636fe5;
/* rgb */ color: rgb(99, 111, 229);
/* oklch */ color: oklch(59.3% 0.177 275.3);

Tailwind

colors: {
  custom: {
    50: '#9998ee',
    500: '#636fe5',
    950: '#000000',
  },
}

SCSS

$custom: #636fe5;
$custom-light: #9998ee;
$custom-dark: #000000;

JSON

{
  "hex": "#636fe5",
  "rgb": {
    "r": 99,
    "g": 111,
    "b": 229
  },
  "hsl": {
    "h": 234.462,
    "s": 71.429,
    "l": 64.314
  },
  "oklch": {
    "l": 0.59304,
    "c": 0.17686,
    "h": 275.3
  },
  "luminance": 0.19679
}

Semantic roles & 50–950 ramp

primary

#636FE5

secondary

#E8E4BB

accent

#C212D3

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #636FE5

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

Preview Lab → · Contrast checker → · Palette generator →