#636FF6#636FF6

#636FF6 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 60.5% C 0.199 H 274.9°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#636FF6
RGB	rgb(99, 111, 246)
HSL	hsl(235, 89%, 68%)
HSV	hsv(235, 60%, 96%)
CMYK	cmyk(59.8%, 54.9%, 0%, 3.5%)
CIE-LAB	lab(52.59, 34.89, -69.24)
CIE-LCH	lch(52.59, 77.53, 296.74°)
OKLab	oklab(60.5% 0.0171 -0.1987)
OKLCH	oklch(60.5% 0.199 274.9)
XYZ	xyz(27.4591, 20.6732, 89.7142)
Luminance	0.2067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636FF6 #F6EA63

analogous

#63B8F6 #636FF6 #A063F6

triadic

#636FF6 #F6636F #6FF663

tetradic

#636FF6 #F663B8 #F6EA63 #63F6A0

square

#636FF6 #F663B8 #F6EA63 #63F6A0

split-complementary

#636FF6 #F6A063 #B8F663

monochromatic

#0C1CD2 #293AF3 #636FF6 #9DA4F9 #D7DAFD

Accessibility & contrast

On white

4.09

#636FF6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#636FF6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636FF6

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636FF6	#FFFFFF	#000000	##000000
##636FF6	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0084FB

Deuteranopia (green-blind)

#0077F3

Tritanopia (blue-blind)

#008FA8

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #636ff6;
/* rgb */ color: rgb(99, 111, 246);
/* oklch */ color: oklch(60.5% 0.199 274.9);

Tailwind

colors: {
  custom: {
    50: '#9c98fa',
    500: '#636ff6',
    950: '#000000',
  },
}

SCSS

$custom: #636ff6;
$custom-light: #9c98fa;
$custom-dark: #000000;

JSON

{
  "hex": "#636ff6",
  "rgb": {
    "r": 99,
    "g": 111,
    "b": 246
  },
  "hsl": {
    "h": 235.102,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.605,
    "c": 0.19947,
    "h": 274.9
  },
  "luminance": 0.20675
}

Semantic roles & 50–950 ramp

primary

#636FF6

secondary

#F1EDC4

accent

#D300E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636FF6

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

Preview Lab → · Contrast checker → · Palette generator →