#636CF2#636CF2

#636CF2 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.7% C 0.198 H 275.7°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#636CF2
RGB	rgb(99, 108, 242)
HSL	hsl(236, 85%, 67%)
HSV	hsv(236, 59%, 95%)
CMYK	cmyk(59.1%, 55.4%, 0%, 5.1%)
CIE-LAB	lab(51.60, 35.41, -68.62)
CIE-LCH	lch(51.60, 77.22, 297.29°)
OKLab	oklab(59.67% 0.0198 -0.197)
OKLCH	oklch(59.67% 0.198 275.7)
XYZ	xyz(26.5300, 19.7866, 86.4083)
Luminance	0.1979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636CF2 #F2E963

analogous

#63B4F2 #636CF2 #A263F2

triadic

#636CF2 #F2636C #6CF263

tetradic

#636CF2 #F263B4 #F2E963 #63F2A2

square

#636CF2 #F263B4 #F2E963 #63F2A2

split-complementary

#636CF2 #F2A263 #B4F263

monochromatic

#111CCA #2B37ED #636CF2 #9BA1F7 #D4D6FB

Accessibility & contrast

On white

4.24

#636CF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#636CF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636CF2

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636CF2	#FFFFFF	#000000	##000000
##636CF2	1.00	4.24	4.96	4.96
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0081F7

Deuteranopia (green-blind)

#0075EF

Tritanopia (blue-blind)

#008CA5

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #636cf2;
/* rgb */ color: rgb(99, 108, 242);
/* oklch */ color: oklch(59.7% 0.198 275.7);

Tailwind

colors: {
  custom: {
    50: '#9c96f7',
    500: '#636cf2',
    950: '#000000',
  },
}

SCSS

$custom: #636cf2;
$custom-light: #9c96f7;
$custom-dark: #000000;

JSON

{
  "hex": "#636cf2",
  "rgb": {
    "r": 99,
    "g": 108,
    "b": 242
  },
  "hsl": {
    "h": 236.224,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.59672,
    "c": 0.19795,
    "h": 275.7
  },
  "luminance": 0.19789
}

Semantic roles & 50–950 ramp

primary

#636CF2

secondary

#EFECC2

accent

#D304E1

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636CF2

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

Preview Lab → · Contrast checker → · Palette generator →