#665EE6#665EE6

#665EE6 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 56.6% C 0.199 H 280.6°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#665EE6
RGB	rgb(102, 94, 230)
HSL	hsl(244, 73%, 64%)
HSV	hsv(244, 59%, 90%)
CMYK	cmyk(55.7%, 59.1%, 0%, 9.8%)
CIE-LAB	lab(47.68, 40.50, -68.23)
CIE-LCH	lch(47.68, 79.35, 300.69°)
OKLab	oklab(56.56% 0.0365 -0.1958)
OKLCH	oklch(56.56% 0.199 280.6)
XYZ	xyz(23.7607, 16.5418, 76.7884)
Luminance	0.1654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EE6 #DEE65E

analogous

#5E9AE6 #665EE6 #AA5EE6

triadic

#665EE6 #E6665E #5EE666

tetradic

#665EE6 #E65E9A #DEE65E #5EE6AA

square

#665EE6 #E65E9A #DEE65E #5EE6AA

split-complementary

#665EE6 #E6AA5E #9AE65E

monochromatic

#241BAF #3429DE #665EE6 #9893EE #CBC8F6

Accessibility & contrast

On white

4.87

#665EE6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#665EE6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EE6

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EE6	#FFFFFF	#000000	##FFFFFF
##665EE6	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076EA

Deuteranopia (green-blind)

#006CE3

Tritanopia (blue-blind)

#237F99

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665ee6;
/* rgb */ color: rgb(102, 94, 230);
/* oklch */ color: oklch(56.6% 0.199 280.6);

Tailwind

colors: {
  custom: {
    50: '#9c8cef',
    500: '#665ee6',
    950: '#000000',
  },
}

SCSS

$custom: #665ee6;
$custom-light: #9c8cef;
$custom-dark: #000000;

JSON

{
  "hex": "#665ee6",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 230
  },
  "hsl": {
    "h": 243.529,
    "s": 73.118,
    "l": 63.529
  },
  "oklch": {
    "l": 0.56556,
    "c": 0.1992,
    "h": 280.6
  },
  "luminance": 0.16543
}

Semantic roles & 50–950 ramp

primary

#665EE6

secondary

#E5E8B8

accent

#D510CA

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #665EE6

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

Preview Lab → · Contrast checker → · Palette generator →