#665DE9#665DE9

#665DE9 is a mid, highly saturated blue. Relative luminance 0.165; OKLCH L 56.6% C 0.204 H 280.5°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#665DE9
RGB	rgb(102, 93, 233)
HSL	hsl(244, 76%, 64%)
HSV	hsv(244, 60%, 91%)
CMYK	cmyk(56.2%, 60.1%, 0%, 8.6%)
CIE-LAB	lab(47.67, 42.02, -69.94)
CIE-LCH	lch(47.67, 81.59, 301.00°)
OKLab	oklab(56.62% 0.0373 -0.2008)
OKLCH	oklch(56.62% 0.204 280.5)
XYZ	xyz(24.0972, 16.5351, 78.9968)
Luminance	0.1654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DE9 #E0E95D

analogous

#5D9AE9 #665DE9 #AC5DE9

triadic

#665DE9 #E9665D #5DE966

tetradic

#665DE9 #E95D9A #E0E95D #5DE9AC

square

#665DE9 #E95D9A #E0E95D #5DE9AC

split-complementary

#665DE9 #E9AC5D #9AE95D

monochromatic

#2218B3 #3327E2 #665DE9 #9993F0 #CCC9F8

Accessibility & contrast

On white

4.88

#665DE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#665DE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DE9

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DE9	#FFFFFF	#000000	##FFFFFF
##665DE9	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076EE

Deuteranopia (green-blind)

#006CE6

Tritanopia (blue-blind)

#1E7F9A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665de9;
/* rgb */ color: rgb(102, 93, 233);
/* oklch */ color: oklch(56.6% 0.204 280.5);

Tailwind

colors: {
  custom: {
    50: '#9d8bf1',
    500: '#665de9',
    950: '#000000',
  },
}

SCSS

$custom: #665de9;
$custom-light: #9d8bf1;
$custom-dark: #000000;

JSON

{
  "hex": "#665de9",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 233
  },
  "hsl": {
    "h": 243.857,
    "s": 76.087,
    "l": 63.922
  },
  "oklch": {
    "l": 0.56618,
    "c": 0.20429,
    "h": 280.5
  },
  "luminance": 0.16537
}

Semantic roles & 50–950 ramp

primary

#665DE9

secondary

#E6E9B8

accent

#D80DCB

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #665DE9

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

Preview Lab → · Contrast checker → · Palette generator →