#665CD5#665CD5

#665CD5 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 55.0% C 0.180 H 282.5°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#665CD5
RGB	rgb(102, 92, 213)
HSL	hsl(245, 59%, 60%)
HSV	hsv(245, 57%, 84%)
CMYK	cmyk(52.1%, 56.8%, 0%, 16.5%)
CIE-LAB	lab(46.02, 36.45, -61.27)
CIE-LCH	lch(46.02, 71.29, 300.75°)
OKLab	oklab(54.95% 0.0388 -0.1754)
OKLCH	oklch(54.95% 0.18 282.5)
XYZ	xyz(21.3132, 15.2820, 64.7645)
Luminance	0.1528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CD5 #CBD55C

analogous

#5C8ED5 #665CD5 #A35CD5

triadic

#665CD5 #D5665C #5CD566

tetradic

#665CD5 #D55C8E #CBD55C #5CD5A3

square

#665CD5 #D55C8E #CBD55C #5CD5A3

split-complementary

#665CD5 #D5A35C #8ED55C

monochromatic

#2E2591 #3E32C2 #665CD5 #948DE2 #C1BDEE

Accessibility & contrast

On white

5.18

#665CD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#665CD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CD5

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CD5	#FFFFFF	#000000	##FFFFFF
##665CD5	1.00	5.18	4.06	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071D9

Deuteranopia (green-blind)

#0069D2

Tritanopia (blue-blind)

#387890

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #665cd5;
/* rgb */ color: rgb(102, 92, 213);
/* oklch */ color: oklch(55.0% 0.180 282.5);

Tailwind

colors: {
  custom: {
    50: '#9a8ae3',
    500: '#665cd5',
    950: '#000000',
  },
}

SCSS

$custom: #665cd5;
$custom-light: #9a8ae3;
$custom-dark: #000000;

JSON

{
  "hex": "#665cd5",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 213
  },
  "hsl": {
    "h": 244.959,
    "s": 59.024,
    "l": 59.804
  },
  "oklch": {
    "l": 0.54953,
    "c": 0.17959,
    "h": 282.5
  },
  "luminance": 0.15283
}

Semantic roles & 50–950 ramp

primary

#665CD5

secondary

#DADEAF

accent

#E246D5

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0C15

muted

#7F7D84

Preview Lab

Preview with #665CD5

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

Preview Lab → · Contrast checker → · Palette generator →