#636EF7#636EF7

#636EF7 is a mid, highly saturated blue. Relative luminance 0.205; OKLCH L 60.4% C 0.202 H 275.1°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#636EF7
RGB	rgb(99, 110, 247)
HSL	hsl(236, 90%, 68%)
HSV	hsv(236, 60%, 97%)
CMYK	cmyk(59.9%, 55.5%, 0%, 3.1%)
CIE-LAB	lab(52.42, 35.82, -70.07)
CIE-LCH	lch(52.42, 78.70, 297.07°)
OKLab	oklab(60.39% 0.018 -0.2012)
OKLCH	oklch(60.39% 0.202 275.1)
XYZ	xyz(27.5045, 20.5177, 90.4886)
Luminance	0.2052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636EF7 #F7EC63

analogous

#63B8F7 #636EF7 #A263F7

triadic

#636EF7 #F7636E #6EF763

tetradic

#636EF7 #F763B8 #F7EC63 #63F7A2

square

#636EF7 #F763B8 #F7EC63 #63F7A2

split-complementary

#636EF7 #F7A263 #B8F763

monochromatic

#0B1AD5 #2938F4 #636EF7 #9DA4FA #D7DAFD

Accessibility & contrast

On white

4.11

#636EF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#636EF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636EF7

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636EF7	#FFFFFF	#000000	##000000
##636EF7	1.00	4.11	5.10	5.10
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0084FC

Deuteranopia (green-blind)

#0077F4

Tritanopia (blue-blind)

#008FA8

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #636ef7;
/* rgb */ color: rgb(99, 110, 247);
/* oklch */ color: oklch(60.4% 0.202 275.1);

Tailwind

colors: {
  custom: {
    50: '#9c97fb',
    500: '#636ef7',
    950: '#000000',
  },
}

SCSS

$custom: #636ef7;
$custom-light: #9c97fb;
$custom-dark: #000000;

JSON

{
  "hex": "#636ef7",
  "rgb": {
    "r": 99,
    "g": 110,
    "b": 247
  },
  "hsl": {
    "h": 235.541,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.60393,
    "c": 0.20202,
    "h": 275.1
  },
  "luminance": 0.2052
}

Semantic roles & 50–950 ramp

primary

#636EF7

secondary

#F2EEC4

accent

#D400E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636EF7

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

Preview Lab → · Contrast checker → · Palette generator →