#665BE7#665BE7

#665BE7 is a mid, highly saturated blue. Relative luminance 0.161; OKLCH L 56.1% C 0.204 H 281.1°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#665BE7
RGB	rgb(102, 91, 231)
HSL	hsl(245, 74%, 63%)
HSV	hsv(245, 61%, 91%)
CMYK	cmyk(55.8%, 60.6%, 0%, 9.4%)
CIE-LAB	lab(47.07, 42.58, -69.78)
CIE-LCH	lch(47.07, 81.74, 301.39°)
OKLab	oklab(56.14% 0.0393 -0.2004)
OKLCH	oklch(56.14% 0.204 281.1)
XYZ	xyz(23.6399, 16.0749, 77.4429)
Luminance	0.1608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BE7 #DCE75B

analogous

#5B96E7 #665BE7 #AC5BE7

triadic

#665BE7 #E7665B #5BE766

tetradic

#665BE7 #E75B96 #DCE75B #5BE7AC

square

#665BE7 #E75B96 #DCE75B #5BE7AC

split-complementary

#665BE7 #E7AC5B #96E75B

monochromatic

#2519AE #3426DF #665BE7 #9890EF #CAC6F7

Accessibility & contrast

On white

4.98

#665BE7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#665BE7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BE7

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BE7	#FFFFFF	#000000	##FFFFFF
##665BE7	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075EC

Deuteranopia (green-blind)

#006AE4

Tritanopia (blue-blind)

#227D98

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665be7;
/* rgb */ color: rgb(102, 91, 231);
/* oklch */ color: oklch(56.1% 0.204 281.1);

Tailwind

colors: {
  custom: {
    50: '#9d8af0',
    500: '#665be7',
    950: '#000000',
  },
}

SCSS

$custom: #665be7;
$custom-light: #9d8af0;
$custom-dark: #000000;

JSON

{
  "hex": "#665be7",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 231
  },
  "hsl": {
    "h": 244.714,
    "s": 74.468,
    "l": 63.137
  },
  "oklch": {
    "l": 0.56135,
    "c": 0.20421,
    "h": 281.1
  },
  "luminance": 0.16076
}

Semantic roles & 50–950 ramp

primary

#665BE7

secondary

#E4E8B6

accent

#D70FC7

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #665BE7

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

Preview Lab → · Contrast checker → · Palette generator →