#665DD4#665DD4

#665DD4 is a mid, vivid blue. Relative luminance 0.154; OKLCH L 55.1% C 0.177 H 282.3°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#665DD4
RGB	rgb(102, 93, 212)
HSL	hsl(245, 58%, 60%)
HSV	hsv(245, 56%, 83%)
CMYK	cmyk(51.9%, 56.1%, 0%, 16.9%)
CIE-LAB	lab(46.18, 35.54, -60.43)
CIE-LCH	lch(46.18, 70.11, 300.46°)
OKLab	oklab(55.06% 0.0377 -0.1729)
OKLCH	oklch(55.06% 0.177 282.3)
XYZ	xyz(21.2739, 15.4057, 64.1272)
Luminance	0.1541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DD4 #CBD45D

analogous

#5D8FD4 #665DD4 #A25DD4

triadic

#665DD4 #D4665D #5DD466

tetradic

#665DD4 #D45D8F #CBD45D #5DD4A2

square

#665DD4 #D45D8F #CBD45D #5DD4A2

split-complementary

#665DD4 #D4A25D #8FD45D

monochromatic

#2E2690 #3E33C1 #665DD4 #948DE1 #C1BEEE

Accessibility & contrast

On white

5.15

#665DD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#665DD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DD4

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DD4	#FFFFFF	#000000	##FFFFFF
##665DD4	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0271D8

Deuteranopia (green-blind)

#0069D1

Tritanopia (blue-blind)

#39788F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #665dd4;
/* rgb */ color: rgb(102, 93, 212);
/* oklch */ color: oklch(55.1% 0.177 282.3);

Tailwind

colors: {
  custom: {
    50: '#9a8be2',
    500: '#665dd4',
    950: '#000000',
  },
}

SCSS

$custom: #665dd4;
$custom-light: #9a8be2;
$custom-dark: #000000;

JSON

{
  "hex": "#665dd4",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 212
  },
  "hsl": {
    "h": 244.538,
    "s": 58.049,
    "l": 59.804
  },
  "oklch": {
    "l": 0.55055,
    "c": 0.17694,
    "h": 282.3
  },
  "luminance": 0.15407
}

Semantic roles & 50–950 ramp

primary

#665DD4

secondary

#DADDAF

accent

#E147D6

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #665DD4

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

Preview Lab → · Contrast checker → · Palette generator →