#636DEA#636DEA

#636DEA is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.3% C 0.186 H 275.7°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#636DEA
RGB	rgb(99, 109, 234)
HSL	hsl(236, 76%, 65%)
HSV	hsv(236, 58%, 92%)
CMYK	cmyk(57.7%, 53.4%, 0%, 8.2%)
CIE-LAB	lab(51.30, 32.23, -64.63)
CIE-LCH	lch(51.30, 72.22, 296.51°)
OKLab	oklab(59.28% 0.0185 -0.1852)
OKLCH	oklch(59.28% 0.186 275.7)
XYZ	xyz(25.4607, 19.5286, 80.2537)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636DEA #EAE063

analogous

#63B0EA #636DEA #9D63EA

triadic

#636DEA #EA636D #6DEA63

tetradic

#636DEA #EA63B0 #EAE063 #63EA9D

square

#636DEA #EA63B0 #EAE063 #63EA9D

split-complementary

#636DEA #EA9D63 #B0EA63

monochromatic

#1925BA #2D3BE3 #636DEA #999FF1 #CFD2F9

Accessibility & contrast

On white

4.28

#636DEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#636DEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636DEA

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636DEA	#FFFFFF	#000000	##000000
##636DEA	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C80EE

Deuteranopia (green-blind)

#0075E7

Tritanopia (blue-blind)

#008AA1

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #636dea;
/* rgb */ color: rgb(99, 109, 234);
/* oklch */ color: oklch(59.3% 0.186 275.7);

Tailwind

colors: {
  custom: {
    50: '#9a96f1',
    500: '#636dea',
    950: '#000000',
  },
}

SCSS

$custom: #636dea;
$custom-light: #9a96f1;
$custom-dark: #000000;

JSON

{
  "hex": "#636dea",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 234
  },
  "hsl": {
    "h": 235.556,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.5928,
    "c": 0.18611,
    "h": 275.7
  },
  "luminance": 0.1953
}

Semantic roles & 50–950 ramp

primary

#636DEA

secondary

#EBE8BE

accent

#C90DD8

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636DEA

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

Preview Lab → · Contrast checker → · Palette generator →