#636EF6#636EF6

#636EF6 is a mid, highly saturated blue. Relative luminance 0.205; OKLCH L 60.3% C 0.201 H 275.1°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#636EF6
RGB	rgb(99, 110, 246)
HSL	hsl(236, 89%, 68%)
HSV	hsv(236, 60%, 96%)
CMYK	cmyk(59.8%, 55.3%, 0%, 3.5%)
CIE-LAB	lab(52.35, 35.49, -69.63)
CIE-LCH	lch(52.35, 78.15, 297.01°)
OKLab	oklab(60.32% 0.018 -0.1999)
OKLCH	oklch(60.32% 0.201 275.1)
XYZ	xyz(27.3506, 20.4562, 89.6781)
Luminance	0.2046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636EF6 #F6EB63

analogous

#63B8F6 #636EF6 #A163F6

triadic

#636EF6 #F6636E #6EF663

tetradic

#636EF6 #F663B8 #F6EB63 #63F6A1

square

#636EF6 #F663B8 #F6EB63 #63F6A1

split-complementary

#636EF6 #F6A163 #B8F663

monochromatic

#0C1BD2 #2938F3 #636EF6 #9DA4F9 #D7DAFD

Accessibility & contrast

On white

4.12

#636EF6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#636EF6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636EF6

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636EF6	#FFFFFF	#000000	##000000
##636EF6	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0083FB

Deuteranopia (green-blind)

#0077F3

Tritanopia (blue-blind)

#008EA7

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #636ef6;
/* rgb */ color: rgb(99, 110, 246);
/* oklch */ color: oklch(60.3% 0.201 275.1);

Tailwind

colors: {
  custom: {
    50: '#9c97fa',
    500: '#636ef6',
    950: '#000000',
  },
}

SCSS

$custom: #636ef6;
$custom-light: #9c97fa;
$custom-dark: #000000;

JSON

{
  "hex": "#636ef6",
  "rgb": {
    "r": 99,
    "g": 110,
    "b": 246
  },
  "hsl": {
    "h": 235.51,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.6032,
    "c": 0.20071,
    "h": 275.1
  },
  "luminance": 0.20458
}

Semantic roles & 50–950 ramp

primary

#636EF6

secondary

#F1EEC4

accent

#D400E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636EF6

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

Preview Lab → · Contrast checker → · Palette generator →