#636AF7#636AF7

#636AF7 is a mid, highly saturated blue. Relative luminance 0.197; OKLCH L 59.7% C 0.207 H 276.0°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#636AF7
RGB	rgb(99, 106, 247)
HSL	hsl(237, 90%, 68%)
HSV	hsv(237, 60%, 97%)
CMYK	cmyk(59.9%, 57.1%, 0%, 3.1%)
CIE-LAB	lab(51.47, 38.21, -71.62)
CIE-LCH	lch(51.47, 81.17, 298.08°)
OKLab	oklab(59.69% 0.0216 -0.2058)
OKLCH	oklch(59.69% 0.207 276)
XYZ	xyz(27.0827, 19.6740, 90.3479)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636AF7 #F7F063

analogous

#63B4F7 #636AF7 #A663F7

triadic

#636AF7 #F7636A #6AF763

tetradic

#636AF7 #F763B4 #F7F063 #63F7A6

square

#636AF7 #F763B4 #F7F063 #63F7A6

split-complementary

#636AF7 #F7A663 #B4F763

monochromatic

#0B14D5 #2932F4 #636AF7 #9DA2FA #D7D9FD

Accessibility & contrast

On white

4.26

#636AF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#636AF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636AF7

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636AF7	#FFFFFF	#000000	##000000
##636AF7	1.00	4.26	4.94	4.94
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0081FC

Deuteranopia (green-blind)

#0074F4

Tritanopia (blue-blind)

#008CA6

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #636af7;
/* rgb */ color: rgb(99, 106, 247);
/* oklch */ color: oklch(59.7% 0.207 276.0);

Tailwind

colors: {
  custom: {
    50: '#9d94fb',
    500: '#636af7',
    950: '#000000',
  },
}

SCSS

$custom: #636af7;
$custom-light: #9d94fb;
$custom-dark: #000000;

JSON

{
  "hex": "#636af7",
  "rgb": {
    "r": 99,
    "g": 106,
    "b": 247
  },
  "hsl": {
    "h": 237.162,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.59686,
    "c": 0.20691,
    "h": 276
  },
  "luminance": 0.19676
}

Semantic roles & 50–950 ramp

primary

#636AF7

secondary

#F2F0C4

accent

#DB00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D17

muted

#7F7E85

Preview Lab

Preview with #636AF7

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

Preview Lab → · Contrast checker → · Palette generator →