#665CBF#665CBF

#665CBF is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.4% C 0.150 H 284.7°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#665CBF
RGB	rgb(102, 92, 191)
HSL	hsl(246, 44%, 55%)
HSV	hsv(246, 52%, 75%)
CMYK	cmyk(46.6%, 51.8%, 0%, 25.1%)
CIE-LAB	lab(44.57, 29.75, -50.93)
CIE-LCH	lch(44.57, 58.98, 300.29°)
OKLab	oklab(53.42% 0.038 -0.1449)
OKLCH	oklch(53.42% 0.15 284.7)
XYZ	xyz(18.7078, 14.2398, 51.0429)
Luminance	0.1424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CBF #B5BF5C

analogous

#5C83BF #665CBF #985CBF

triadic

#665CBF #BF665C #5CBF66

tetradic

#665CBF #BF5C83 #B5BF5C #5CBF98

square

#665CBF #BF5C83 #B5BF5C #5CBF98

split-complementary

#665CBF #BF985C #83BF5C

monochromatic

#342D73 #483F9F #665CBF #8F88D0 #B8B4E2

Accessibility & contrast

On white

5.46

#665CBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#665CBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CBF

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CBF	#FFFFFF	#000000	##FFFFFF
##665CBF	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)

#2D6CC2

Deuteranopia (green-blind)

#2966BD

Tritanopia (blue-blind)

#487185

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665cbf;
/* rgb */ color: rgb(102, 92, 191);
/* oklch */ color: oklch(53.4% 0.150 284.7);

Tailwind

colors: {
  custom: {
    50: '#978ad3',
    500: '#665cbf',
    950: '#000000',
  },
}

SCSS

$custom: #665cbf;
$custom-light: #978ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#665cbf",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 191
  },
  "hsl": {
    "h": 246.061,
    "s": 43.612,
    "l": 55.49
  },
  "oklch": {
    "l": 0.53418,
    "c": 0.14985,
    "h": 284.7
  },
  "luminance": 0.14241
}

Semantic roles & 50–950 ramp

primary

#665CBF

secondary

#CCD0A7

accent

#D354C7

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665CBF

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

Preview Lab → · Contrast checker → · Palette generator →