#636FE7#636FE7

#636FE7 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.4% C 0.180 H 275.2°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#636FE7
RGB	rgb(99, 111, 231)
HSL	hsl(235, 73%, 65%)
HSV	hsv(235, 57%, 91%)
CMYK	cmyk(57.1%, 51.9%, 0%, 9.4%)
CIE-LAB	lab(51.60, 30.05, -62.46)
CIE-LCH	lch(51.60, 69.32, 295.69°)
OKLab	oklab(59.44% 0.0164 -0.1788)
OKLCH	oklch(59.44% 0.18 275.2)
XYZ	xyz(25.2492, 19.7892, 78.0750)
Luminance	0.1979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636FE7 #E7DB63

analogous

#63B1E7 #636FE7 #9963E7

triadic

#636FE7 #E7636F #6FE763

tetradic

#636FE7 #E763B1 #E7DB63 #63E799

square

#636FE7 #E763B1 #E7DB63 #63E799

split-complementary

#636FE7 #E79963 #B1E763

monochromatic

#1C2AB4 #2E3EDF #636FE7 #98A0EF #CDD1F7

Accessibility & contrast

On white

4.24

#636FE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#636FE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636FE7

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636FE7	#FFFFFF	#000000	##000000
##636FE7	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)

#2981EB

Deuteranopia (green-blind)

#0276E4

Tritanopia (blue-blind)

#058AA0

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #636fe7;
/* rgb */ color: rgb(99, 111, 231);
/* oklch */ color: oklch(59.4% 0.180 275.2);

Tailwind

colors: {
  custom: {
    50: '#9a98ef',
    500: '#636fe7',
    950: '#000000',
  },
}

SCSS

$custom: #636fe7;
$custom-light: #9a98ef;
$custom-dark: #000000;

JSON

{
  "hex": "#636fe7",
  "rgb": {
    "r": 99,
    "g": 111,
    "b": 231
  },
  "hsl": {
    "h": 234.545,
    "s": 73.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.59442,
    "c": 0.17955,
    "h": 275.2
  },
  "luminance": 0.19791
}

Semantic roles & 50–950 ramp

primary

#636FE7

secondary

#EAE5BC

accent

#C310D5

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636FE7

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

Preview Lab → · Contrast checker → · Palette generator →