#6366F2#6366F2

#6366F2 is a mid, highly saturated blue. Relative luminance 0.186; OKLCH L 58.6% C 0.205 H 277.1°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#6366F2
RGB	rgb(99, 102, 242)
HSL	hsl(239, 85%, 67%)
HSV	hsv(239, 59%, 95%)
CMYK	cmyk(59.1%, 57.9%, 0%, 5.1%)
CIE-LAB	lab(50.17, 39.01, -70.93)
CIE-LCH	lch(50.17, 80.95, 298.81°)
OKLab	oklab(58.62% 0.0253 -0.2038)
OKLCH	oklch(58.62% 0.205 277.1)
XYZ	xyz(25.9188, 18.5643, 86.2046)
Luminance	0.1857 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6366F2 #F2EF63

analogous

#63AEF2 #6366F2 #A863F2

triadic

#6366F2 #F26366 #66F263

tetradic

#6366F2 #F263AE #F2EF63 #63F2A8

square

#6366F2 #F263AE #F2EF63 #63F2A8

split-complementary

#6366F2 #F2A863 #AEF263

monochromatic

#1115CA #2B2FED #6366F2 #9B9DF7 #D4D5FB

Accessibility & contrast

On white

4.46

#6366F2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#6366F2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6366F2

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6366F2	#FFFFFF	#000000	##000000
##6366F2	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007EF7

Deuteranopia (green-blind)

#0071EF

Tritanopia (blue-blind)

#0088A2

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #6366f2;
/* rgb */ color: rgb(99, 102, 242);
/* oklch */ color: oklch(58.6% 0.205 277.1);

Tailwind

colors: {
  custom: {
    50: '#9c92f7',
    500: '#6366f2',
    950: '#000000',
  },
}

SCSS

$custom: #6366f2;
$custom-light: #9c92f7;
$custom-dark: #000000;

JSON

{
  "hex": "#6366f2",
  "rgb": {
    "r": 99,
    "g": 102,
    "b": 242
  },
  "hsl": {
    "h": 238.741,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.58616,
    "c": 0.20535,
    "h": 277.1
  },
  "luminance": 0.18566
}

Semantic roles & 50–950 ramp

primary

#6366F2

secondary

#EFEEC2

accent

#DC04E1

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0D17

muted

#7F7D85

Preview Lab

Preview with #6366F2

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

Preview Lab → · Contrast checker → · Palette generator →