#665CB8#665CB8

#665CB8 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.0% C 0.140 H 285.5°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#665CB8
RGB	rgb(102, 92, 184)
HSL	hsl(247, 39%, 54%)
HSV	hsv(247, 50%, 72%)
CMYK	cmyk(44.6%, 50%, 0%, 27.8%)
CIE-LAB	lab(44.15, 27.65, -47.54)
CIE-LCH	lch(44.15, 55.00, 300.18°)
OKLab	oklab(52.96% 0.0375 -0.135)
OKLCH	oklch(52.96% 0.14 285.5)
XYZ	xyz(17.9559, 13.9390, 47.0825)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CB8 #AEB85C

analogous

#5C80B8 #665CB8 #945CB8

triadic

#665CB8 #B8665C #5CB866

tetradic

#665CB8 #B85C80 #AEB85C #5CB894

square

#665CB8 #B85C80 #AEB85C #5CB894

split-complementary

#665CB8 #B8945C #80B85C

monochromatic

#352F6B #4A4196 #665CB8 #8E87CB #B6B1DD

Accessibility & contrast

On white

5.54

#665CB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#665CB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CB8

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CB8	#FFFFFF	#000000	##FFFFFF
##665CB8	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346BBB

Deuteranopia (green-blind)

#3266B6

Tritanopia (blue-blind)

#4C6F81

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #665cb8;
/* rgb */ color: rgb(102, 92, 184);
/* oklch */ color: oklch(53.0% 0.140 285.5);

Tailwind

colors: {
  custom: {
    50: '#968ace',
    500: '#665cb8',
    950: '#000000',
  },
}

SCSS

$custom: #665cb8;
$custom-light: #968ace;
$custom-dark: #000000;

JSON

{
  "hex": "#665cb8",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 184
  },
  "hsl": {
    "h": 246.522,
    "s": 39.316,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52958,
    "c": 0.1401,
    "h": 285.5
  },
  "luminance": 0.1394
}

Semantic roles & 50–950 ramp

primary

#665CB8

secondary

#C7CBA4

accent

#CF59C2

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0B13

muted

#7E7C82

Preview Lab

Preview with #665CB8

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

Preview Lab → · Contrast checker → · Palette generator →