#665CE3#665CE3

#665CE3 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 56.0% C 0.198 H 281.2°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#665CE3
RGB	rgb(102, 92, 227)
HSL	hsl(244, 71%, 63%)
HSV	hsv(244, 59%, 89%)
CMYK	cmyk(55.1%, 59.5%, 0%, 11%)
CIE-LAB	lab(47.01, 40.76, -67.63)
CIE-LCH	lch(47.01, 78.96, 301.07°)
OKLab	oklab(55.99% 0.0385 -0.1941)
OKLCH	oklch(55.99% 0.198 281.2)
XYZ	xyz(23.1675, 16.0237, 74.5302)
Luminance	0.1603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CE3 #D9E35C

analogous

#5C96E3 #665CE3 #A95CE3

triadic

#665CE3 #E3665C #5CE366

tetradic

#665CE3 #E35C96 #D9E35C #5CE3A9

square

#665CE3 #E35C96 #D9E35C #5CE3A9

split-complementary

#665CE3 #E3A95C #96E35C

monochromatic

#271DA8 #3528DA #665CE3 #9790EC #C8C4F5

Accessibility & contrast

On white

4.99

#665CE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#665CE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CE3

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CE3	#FFFFFF	#000000	##FFFFFF
##665CE3	1.00	4.99	4.20	4.99
#FFFFFF	4.99	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	4.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074E7

Deuteranopia (green-blind)

#006BE0

Tritanopia (blue-blind)

#287C97

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #665ce3;
/* rgb */ color: rgb(102, 92, 227);
/* oklch */ color: oklch(56.0% 0.198 281.2);

Tailwind

colors: {
  custom: {
    50: '#9c8aed',
    500: '#665ce3',
    950: '#000000',
  },
}

SCSS

$custom: #665ce3;
$custom-light: #9c8aed;
$custom-dark: #000000;

JSON

{
  "hex": "#665ce3",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 227
  },
  "hsl": {
    "h": 244.444,
    "s": 70.681,
    "l": 62.549
  },
  "oklch": {
    "l": 0.55993,
    "c": 0.19785,
    "h": 281.2
  },
  "luminance": 0.16025
}

Semantic roles & 50–950 ramp

primary

#665CE3

secondary

#E2E6B5

accent

#D313C4

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665CE3

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

Preview Lab → · Contrast checker → · Palette generator →