#665CC3#665CC3

#665CC3 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.7% C 0.155 H 284.3°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#665CC3
RGB	rgb(102, 92, 195)
HSL	hsl(246, 46%, 56%)
HSV	hsv(246, 53%, 76%)
CMYK	cmyk(47.7%, 52.8%, 0%, 23.5%)
CIE-LAB	lab(44.83, 30.96, -52.84)
CIE-LCH	lch(44.83, 61.24, 300.36°)
OKLab	oklab(53.69% 0.0383 -0.1506)
OKLCH	oklch(53.69% 0.155 284.3)
XYZ	xyz(19.1540, 14.4183, 53.3929)
Luminance	0.1442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CC3 #B9C35C

analogous

#5C86C3 #665CC3 #9A5CC3

triadic

#665CC3 #C3665C #5CC366

tetradic

#665CC3 #C35C86 #B9C35C #5CC39A

square

#665CC3 #C35C86 #B9C35C #5CC39A

split-complementary

#665CC3 #C39A5C #86C35C

monochromatic

#342C78 #473DA5 #665CC3 #9089D3 #BAB5E4

Accessibility & contrast

On white

5.41

#665CC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#665CC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CC3

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CC3	#FFFFFF	#000000	##FFFFFF
##665CC3	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#286DC7

Deuteranopia (green-blind)

#2367C1

Tritanopia (blue-blind)

#467287

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665cc3;
/* rgb */ color: rgb(102, 92, 195);
/* oklch */ color: oklch(53.7% 0.155 284.3);

Tailwind

colors: {
  custom: {
    50: '#988ad6',
    500: '#665cc3',
    950: '#000000',
  },
}

SCSS

$custom: #665cc3;
$custom-light: #988ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#665cc3",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 195
  },
  "hsl": {
    "h": 245.825,
    "s": 46.188,
    "l": 56.275
  },
  "oklch": {
    "l": 0.53687,
    "c": 0.15536,
    "h": 284.3
  },
  "luminance": 0.14419
}

Semantic roles & 50–950 ramp

primary

#665CC3

secondary

#CED3A8

accent

#D652C9

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665CC3

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

Preview Lab → · Contrast checker → · Palette generator →