#665BBE#665BBE

#665BBE is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.2% C 0.150 H 285.1°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#665BBE
RGB	rgb(102, 91, 190)
HSL	hsl(247, 43%, 55%)
HSV	hsv(247, 52%, 75%)
CMYK	cmyk(46.3%, 52.1%, 0%, 25.5%)
CIE-LAB	lab(44.27, 30.06, -50.84)
CIE-LCH	lch(44.27, 59.06, 300.59°)
OKLab	oklab(53.17% 0.0392 -0.1447)
OKLCH	oklch(53.17% 0.15 285.1)
XYZ	xyz(18.5121, 14.0238, 50.4367)
Luminance	0.1403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BBE #B3BE5B

analogous

#5B81BE #665BBE #985BBE

triadic

#665BBE #BE665B #5BBE66

tetradic

#665BBE #BE5B81 #B3BE5B #5BBE98

square

#665BBE #BE5B81 #B3BE5B #5BBE98

split-complementary

#665BBE #BE985B #81BE5B

monochromatic

#352D72 #493E9D #665BBE #8F87CF #B8B3E1

Accessibility & contrast

On white

5.52

#665BBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#665BBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BBE

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BBE	#FFFFFF	#000000	##FFFFFF
##665BBE	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6CC1

Deuteranopia (green-blind)

#2866BC

Tritanopia (blue-blind)

#497084

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665bbe;
/* rgb */ color: rgb(102, 91, 190);
/* oklch */ color: oklch(53.2% 0.150 285.1);

Tailwind

colors: {
  custom: {
    50: '#9789d2',
    500: '#665bbe',
    950: '#000000',
  },
}

SCSS

$custom: #665bbe;
$custom-light: #9789d2;
$custom-dark: #000000;

JSON

{
  "hex": "#665bbe",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 190
  },
  "hsl": {
    "h": 246.667,
    "s": 43.231,
    "l": 55.098
  },
  "oklch": {
    "l": 0.53168,
    "c": 0.1499,
    "h": 285.1
  },
  "luminance": 0.14025
}

Semantic roles & 50–950 ramp

primary

#665BBE

secondary

#CBCFA6

accent

#D355C5

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665BBE

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

Preview Lab → · Contrast checker → · Palette generator →