#665BD6#665BD6

#665BD6 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.9% C 0.182 H 282.6°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#665BD6
RGB	rgb(102, 91, 214)
HSL	hsl(245, 60%, 60%)
HSV	hsv(245, 57%, 84%)
CMYK	cmyk(52.3%, 57.5%, 0%, 16.1%)
CIE-LAB	lab(45.85, 37.35, -62.11)
CIE-LCH	lch(45.85, 72.47, 301.02°)
OKLab	oklab(54.85% 0.0398 -0.1778)
OKLCH	oklch(54.85% 0.182 282.6)
XYZ	xyz(21.3545, 15.1608, 65.4064)
Luminance	0.1516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BD6 #CBD65B

analogous

#5B8DD6 #665BD6 #A45BD6

triadic

#665BD6 #D6665B #5BD666

tetradic

#665BD6 #D65B8D #CBD65B #5BD6A4

square

#665BD6 #D65B8D #CBD65B #5BD6A4

split-complementary

#665BD6 #D6A45B #8DD65B

monochromatic

#2E2592 #3E31C3 #665BD6 #948CE2 #C1BDEE

Accessibility & contrast

On white

5.21

#665BD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#665BD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BD6

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BD6	#FFFFFF	#000000	##FFFFFF
##665BD6	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DA

Deuteranopia (green-blind)

#0068D3

Tritanopia (blue-blind)

#377890

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #665bd6;
/* rgb */ color: rgb(102, 91, 214);
/* oklch */ color: oklch(54.9% 0.182 282.6);

Tailwind

colors: {
  custom: {
    50: '#9a8ae3',
    500: '#665bd6',
    950: '#000000',
  },
}

SCSS

$custom: #665bd6;
$custom-light: #9a8ae3;
$custom-dark: #000000;

JSON

{
  "hex": "#665bd6",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 214
  },
  "hsl": {
    "h": 245.366,
    "s": 60,
    "l": 59.804
  },
  "oklch": {
    "l": 0.54853,
    "c": 0.18223,
    "h": 282.6
  },
  "luminance": 0.15162
}

Semantic roles & 50–950 ramp

primary

#665BD6

secondary

#DADEAF

accent

#E345D5

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #665BD6

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

Preview Lab → · Contrast checker → · Palette generator →