#665BC1#665BC1

#665BC1 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.4% C 0.154 H 284.8°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#665BC1
RGB	rgb(102, 91, 193)
HSL	hsl(246, 45%, 56%)
HSV	hsv(246, 53%, 76%)
CMYK	cmyk(47.2%, 52.8%, 0%, 24.3%)
CIE-LAB	lab(44.46, 30.96, -52.28)
CIE-LCH	lch(44.46, 60.76, 300.64°)
OKLab	oklab(53.37% 0.0394 -0.1489)
OKLCH	oklch(53.37% 0.154 284.8)
XYZ	xyz(18.8434, 14.1563, 52.1813)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BC1 #B6C15B

analogous

#5B83C1 #665BC1 #995BC1

triadic

#665BC1 #C1665B #5BC166

tetradic

#665BC1 #C15B83 #B6C15B #5BC199

square

#665BC1 #C15B83 #B6C15B #5BC199

split-complementary

#665BC1 #C1995B #83C15B

monochromatic

#342C75 #483DA2 #665BC1 #8F87D2 #B9B4E3

Accessibility & contrast

On white

5.48

#665BC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#665BC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BC1

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BC1	#FFFFFF	#000000	##FFFFFF
##665BC1	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#286CC5

Deuteranopia (green-blind)

#2466BF

Tritanopia (blue-blind)

#477185

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665bc1;
/* rgb */ color: rgb(102, 91, 193);
/* oklch */ color: oklch(53.4% 0.154 284.8);

Tailwind

colors: {
  custom: {
    50: '#9789d4',
    500: '#665bc1',
    950: '#000000',
  },
}

SCSS

$custom: #665bc1;
$custom-light: #9789d4;
$custom-dark: #000000;

JSON

{
  "hex": "#665bc1",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 193
  },
  "hsl": {
    "h": 246.471,
    "s": 45.133,
    "l": 55.686
  },
  "oklch": {
    "l": 0.5337,
    "c": 0.15403,
    "h": 284.8
  },
  "luminance": 0.14157
}

Semantic roles & 50–950 ramp

primary

#665BC1

secondary

#CDD1A7

accent

#D553C7

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665BC1

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

Preview Lab → · Contrast checker → · Palette generator →