#665CD4#665CD4

#665CD4 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.9% C 0.178 H 282.6°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#665CD4
RGB	rgb(102, 92, 212)
HSL	hsl(245, 58%, 60%)
HSV	hsv(245, 57%, 83%)
CMYK	cmyk(51.9%, 56.6%, 0%, 16.9%)
CIE-LAB	lab(45.95, 36.14, -60.81)
CIE-LCH	lch(45.95, 70.74, 300.72°)
OKLab	oklab(54.88% 0.0388 -0.174)
OKLCH	oklch(54.88% 0.178 282.6)
XYZ	xyz(21.1867, 15.2314, 64.0981)
Luminance	0.1523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CD4 #CAD45C

analogous

#5C8ED4 #665CD4 #A25CD4

triadic

#665CD4 #D4665C #5CD466

tetradic

#665CD4 #D45C8E #CAD45C #5CD4A2

square

#665CD4 #D45C8E #CAD45C #5CD4A2

split-complementary

#665CD4 #D4A25C #8ED45C

monochromatic

#2F2690 #3E33C0 #665CD4 #938CE1 #C1BDEE

Accessibility & contrast

On white

5.19

#665CD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#665CD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CD4

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CD4	#FFFFFF	#000000	##FFFFFF
##665CD4	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071D8

Deuteranopia (green-blind)

#0069D1

Tritanopia (blue-blind)

#39788F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #665cd4;
/* rgb */ color: rgb(102, 92, 212);
/* oklch */ color: oklch(54.9% 0.178 282.6);

Tailwind

colors: {
  custom: {
    50: '#9a8ae2',
    500: '#665cd4',
    950: '#000000',
  },
}

SCSS

$custom: #665cd4;
$custom-light: #9a8ae2;
$custom-dark: #000000;

JSON

{
  "hex": "#665cd4",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 212
  },
  "hsl": {
    "h": 245,
    "s": 58.252,
    "l": 59.608
  },
  "oklch": {
    "l": 0.5488,
    "c": 0.17828,
    "h": 282.6
  },
  "luminance": 0.15233
}

Semantic roles & 50–950 ramp

primary

#665CD4

secondary

#D9DDAF

accent

#E146D5

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #665CD4

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

Preview Lab → · Contrast checker → · Palette generator →