#636DEB#636DEB

#636DEB is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.4% C 0.187 H 275.7°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#636DEB
RGB	rgb(99, 109, 235)
HSL	hsl(236, 77%, 65%)
HSV	hsv(236, 58%, 92%)
CMYK	cmyk(57.9%, 53.6%, 0%, 7.8%)
CIE-LAB	lab(51.37, 32.55, -65.08)
CIE-LCH	lch(51.37, 72.77, 296.57°)
OKLab	oklab(59.35% 0.0186 -0.1865)
OKLCH	oklch(59.35% 0.187 275.7)
XYZ	xyz(25.6048, 19.5862, 81.0124)
Luminance	0.1959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636DEB #EBE163

analogous

#63B1EB #636DEB #9D63EB

triadic

#636DEB #EB636D #6DEB63

tetradic

#636DEB #EB63B1 #EBE163 #63EB9D

square

#636DEB #EB63B1 #EBE163 #63EB9D

split-complementary

#636DEB #EB9D63 #B1EB63

monochromatic

#1824BC #2D3AE4 #636DEB #99A0F2 #CFD3F9

Accessibility & contrast

On white

4.27

#636DEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#636DEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636DEB

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636DEB	#FFFFFF	#000000	##000000
##636DEB	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1980EF

Deuteranopia (green-blind)

#0075E8

Tritanopia (blue-blind)

#008AA1

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #636deb;
/* rgb */ color: rgb(99, 109, 235);
/* oklch */ color: oklch(59.4% 0.187 275.7);

Tailwind

colors: {
  custom: {
    50: '#9a96f2',
    500: '#636deb',
    950: '#000000',
  },
}

SCSS

$custom: #636deb;
$custom-light: #9a96f2;
$custom-dark: #000000;

JSON

{
  "hex": "#636deb",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 235
  },
  "hsl": {
    "h": 235.588,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.59351,
    "c": 0.18744,
    "h": 275.7
  },
  "luminance": 0.19588
}

Semantic roles & 50–950 ramp

primary

#636DEB

secondary

#ECE8BE

accent

#CA0CDA

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636DEB

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

Preview Lab → · Contrast checker → · Palette generator →