#665BC3#665BC3

#665BC3 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.5% C 0.157 H 284.6°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#665BC3
RGB	rgb(102, 91, 195)
HSL	hsl(246, 46%, 56%)
HSV	hsv(246, 53%, 76%)
CMYK	cmyk(47.7%, 53.3%, 0%, 23.5%)
CIE-LAB	lab(44.58, 31.56, -53.23)
CIE-LCH	lch(44.58, 61.89, 300.67°)
OKLab	oklab(53.51% 0.0395 -0.1517)
OKLCH	oklch(53.51% 0.157 284.6)
XYZ	xyz(19.0680, 14.2462, 53.3643)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BC3 #B8C35B

analogous

#5B84C3 #665BC3 #9A5BC3

triadic

#665BC3 #C3665B #5BC366

tetradic

#665BC3 #C35B84 #B8C35B #5BC39A

square

#665BC3 #C35B84 #B8C35B #5BC39A

split-complementary

#665BC3 #C39A5B #84C35B

monochromatic

#342C78 #473CA5 #665BC3 #9088D3 #BAB5E4

Accessibility & contrast

On white

5.46

#665BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#665BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BC3

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BC3	#FFFFFF	#000000	##FFFFFF
##665BC3	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#256DC7

Deuteranopia (green-blind)

#2066C1

Tritanopia (blue-blind)

#467286

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665bc3;
/* rgb */ color: rgb(102, 91, 195);
/* oklch */ color: oklch(53.5% 0.157 284.6);

Tailwind

colors: {
  custom: {
    50: '#9889d6',
    500: '#665bc3',
    950: '#000000',
  },
}

SCSS

$custom: #665bc3;
$custom-light: #9889d6;
$custom-dark: #000000;

JSON

{
  "hex": "#665bc3",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 195
  },
  "hsl": {
    "h": 246.346,
    "s": 46.429,
    "l": 56.078
  },
  "oklch": {
    "l": 0.53506,
    "c": 0.15676,
    "h": 284.6
  },
  "luminance": 0.14247
}

Semantic roles & 50–950 ramp

primary

#665BC3

secondary

#CED2A7

accent

#D652C8

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665BC3

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

Preview Lab → · Contrast checker → · Palette generator →