#665BE1#665BE1

#665BE1 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.7% C 0.197 H 281.6°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#665BE1
RGB	rgb(102, 91, 225)
HSL	hsl(245, 69%, 62%)
HSV	hsv(245, 60%, 88%)
CMYK	cmyk(54.7%, 59.6%, 0%, 11.8%)
CIE-LAB	lab(46.63, 40.73, -67.10)
CIE-LCH	lch(46.63, 78.50, 301.26°)
OKLab	oklab(55.68% 0.0396 -0.1925)
OKLCH	oklch(55.68% 0.197 281.6)
XYZ	xyz(22.8070, 15.7418, 73.0562)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BE1 #D6E15B

analogous

#5B93E1 #665BE1 #A95BE1

triadic

#665BE1 #E1665B #5BE166

tetradic

#665BE1 #E15B93 #D6E15B #5BE1A9

square

#665BE1 #E15B93 #D6E15B #5BE1A9

split-complementary

#665BE1 #E1A95B #93E15B

monochromatic

#291EA4 #3627D7 #665BE1 #968FEA #C7C2F4

Accessibility & contrast

On white

5.06

#665BE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#665BE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BE1

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BE1	#FFFFFF	#000000	##FFFFFF
##665BE1	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E5

Deuteranopia (green-blind)

#006ADE

Tritanopia (blue-blind)

#2B7B95

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #665be1;
/* rgb */ color: rgb(102, 91, 225);
/* oklch */ color: oklch(55.7% 0.197 281.6);

Tailwind

colors: {
  custom: {
    50: '#9c8aeb',
    500: '#665be1',
    950: '#000000',
  },
}

SCSS

$custom: #665be1;
$custom-light: #9c8aeb;
$custom-dark: #000000;

JSON

{
  "hex": "#665be1",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 225
  },
  "hsl": {
    "h": 244.925,
    "s": 69.072,
    "l": 61.961
  },
  "oklch": {
    "l": 0.55675,
    "c": 0.19654,
    "h": 281.6
  },
  "luminance": 0.15743
}

Semantic roles & 50–950 ramp

primary

#665BE1

secondary

#E1E5B3

accent

#D114C2

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665BE1

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

Preview Lab → · Contrast checker → · Palette generator →