#636DFF#636DFF

#636DFF is a mid, highly saturated blue. Relative luminance 0.208; OKLCH L 60.8% C 0.214 H 275.1°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#636DFF
RGB	rgb(99, 109, 255)
HSL	hsl(236, 100%, 69%)
HSV	hsv(236, 61%, 100%)
CMYK	cmyk(61.2%, 57.3%, 0%, 0%)
CIE-LAB	lab(52.74, 38.99, -73.99)
CIE-LCH	lch(52.74, 83.64, 297.79°)
OKLab	oklab(60.81% 0.019 -0.2127)
OKLCH	oklch(60.81% 0.214 275.1)
XYZ	xyz(28.6583, 20.8076, 97.0944)
Luminance	0.2081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636DFF #FFF563

analogous

#63BBFF #636DFF #A763FF

triadic

#636DFF #FF636D #6DFF63

tetradic

#636DFF #FF63BB #FFF563 #63FFA7

square

#636DFF #FF63BB #FFF563 #63FFA7

split-complementary

#636DFF #FFA763 #BBFF63

monochromatic

#000FE8 #2634FF #636DFF #A0A6FF #DDE0FF

Accessibility & contrast

On white

4.07

#636DFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#636DFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636DFF

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636DFF	#FFFFFF	#000000	##000000
##636DFF	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0085FF

Deuteranopia (green-blind)

#0077FC

Tritanopia (blue-blind)

#0090AC

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #636dff;
/* rgb */ color: rgb(99, 109, 255);
/* oklch */ color: oklch(60.8% 0.214 275.1);

Tailwind

colors: {
  custom: {
    50: '#9e97ff',
    500: '#636dff',
    950: '#000000',
  },
}

SCSS

$custom: #636dff;
$custom-light: #9e97ff;
$custom-dark: #000000;

JSON

{
  "hex": "#636dff",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 255
  },
  "hsl": {
    "h": 236.154,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.60808,
    "c": 0.21358,
    "h": 275.1
  },
  "luminance": 0.2081
}

Semantic roles & 50–950 ramp

primary

#636DFF

secondary

#F5F2C8

accent

#D700E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #636DFF

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

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