#636CD9#636CD9

#636CD9 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.9% C 0.164 H 276.4°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#636CD9
RGB	rgb(99, 108, 217)
HSL	hsl(235, 61%, 62%)
HSV	hsv(235, 54%, 85%)
CMYK	cmyk(54.4%, 50.2%, 0%, 14.9%)
CIE-LAB	lab(49.96, 27.39, -57.20)
CIE-LCH	lch(49.96, 63.42, 295.59°)
OKLab	oklab(57.93% 0.0184 -0.1633)
OKLCH	oklch(57.93% 0.164 276.4)
XYZ	xyz(23.0285, 18.3860, 67.9676)
Luminance	0.1839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636CD9 #D9D063

analogous

#63A7D9 #636CD9 #9563D9

triadic

#636CD9 #D9636C #6CD963

tetradic

#636CD9 #D963A7 #D9D063 #63D995

square

#636CD9 #D963A7 #D9D063 #63D995

split-complementary

#636CD9 #D99563 #A7D963

monochromatic

#262F9C #323ECD #636CD9 #949AE5 #C5C9F1

Accessibility & contrast

On white

4.49

#636CD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#636CD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636CD9

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636CD9	#FFFFFF	#000000	##000000
##636CD9	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#347CDD

Deuteranopia (green-blind)

#2372D7

Tritanopia (blue-blind)

#288498

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #636cd9;
/* rgb */ color: rgb(99, 108, 217);
/* oklch */ color: oklch(57.9% 0.164 276.4);

Tailwind

colors: {
  custom: {
    50: '#9896e5',
    500: '#636cd9',
    950: '#000000',
  },
}

SCSS

$custom: #636cd9;
$custom-light: #9896e5;
$custom-dark: #000000;

JSON

{
  "hex": "#636cd9",
  "rgb": {
    "r": 99,
    "g": 108,
    "b": 217
  },
  "hsl": {
    "h": 235.424,
    "s": 60.825,
    "l": 61.961
  },
  "oklch": {
    "l": 0.57926,
    "c": 0.16438,
    "h": 276.4
  },
  "luminance": 0.18388
}

Semantic roles & 50–950 ramp

primary

#636CD9

secondary

#E2DEB6

accent

#BB1DC9

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #636CD9

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

Preview Lab → · Contrast checker → · Palette generator →