#636EE7#636EE7

#636EE7 is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.3% C 0.181 H 275.5°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#636EE7
RGB	rgb(99, 110, 231)
HSL	hsl(235, 73%, 65%)
HSV	hsv(235, 57%, 91%)
CMYK	cmyk(57.1%, 52.4%, 0%, 9.4%)
CIE-LAB	lab(51.35, 30.66, -62.86)
CIE-LCH	lch(51.35, 69.94, 296.00°)
OKLab	oklab(59.26% 0.0174 -0.18)
OKLCH	oklch(59.26% 0.181 275.5)
XYZ	xyz(25.1407, 19.5722, 78.0388)
Luminance	0.1957 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636EE7 #E7DC63

analogous

#63B0E7 #636EE7 #9A63E7

triadic

#636EE7 #E7636E #6EE763

tetradic

#636EE7 #E763B0 #E7DC63 #63E79A

square

#636EE7 #E763B0 #E7DC63 #63E79A

split-complementary

#636EE7 #E79A63 #B0E763

monochromatic

#1C28B4 #2E3DDF #636EE7 #989FEF #CDD1F7

Accessibility & contrast

On white

4.27

#636EE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#636EE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636EE7

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636EE7	#FFFFFF	#000000	##000000
##636EE7	1.00	4.27	4.91	4.91
#FFFFFF	4.27	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)

#2680EB

Deuteranopia (green-blind)

#0075E4

Tritanopia (blue-blind)

#068AA0

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #636ee7;
/* rgb */ color: rgb(99, 110, 231);
/* oklch */ color: oklch(59.3% 0.181 275.5);

Tailwind

colors: {
  custom: {
    50: '#9a97ef',
    500: '#636ee7',
    950: '#000000',
  },
}

SCSS

$custom: #636ee7;
$custom-light: #9a97ef;
$custom-dark: #000000;

JSON

{
  "hex": "#636ee7",
  "rgb": {
    "r": 99,
    "g": 110,
    "b": 231
  },
  "hsl": {
    "h": 235,
    "s": 73.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.59255,
    "c": 0.18083,
    "h": 275.5
  },
  "luminance": 0.19574
}

Semantic roles & 50–950 ramp

primary

#636EE7

secondary

#EAE6BC

accent

#C510D5

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636EE7

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

Preview Lab → · Contrast checker → · Palette generator →