#665FF0#665FF0

#665FF0 is a mid, highly saturated blue. Relative luminance 0.173; OKLCH L 57.5% C 0.211 H 279.6°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#665FF0
RGB	rgb(102, 95, 240)
HSL	hsl(243, 83%, 66%)
HSV	hsv(243, 60%, 94%)
CMYK	cmyk(57.5%, 60.4%, 0%, 5.9%)
CIE-LAB	lab(48.63, 43.02, -72.30)
CIE-LCH	lch(48.63, 84.13, 300.75°)
OKLab	oklab(57.49% 0.0352 -0.2078)
OKLCH	oklch(57.49% 0.211 279.6)
XYZ	xyz(25.2949, 17.2987, 84.4272)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FF0 #E9F05F

analogous

#5FA0F0 #665FF0 #AF5FF0

triadic

#665FF0 #F0665F #5FF066

tetradic

#665FF0 #F05FA0 #E9F05F #5FF0AF

square

#665FF0 #F05FA0 #E9F05F #5FF0AF

split-complementary

#665FF0 #F0AF5F #A0F05F

monochromatic

#1B12C2 #3027EB #665FF0 #9C97F5 #D1CFFA

Accessibility & contrast

On white

4.71

#665FF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#665FF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FF0

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FF0	#FFFFFF	#000000	##FFFFFF
##665FF0	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079F5

Deuteranopia (green-blind)

#006EED

Tritanopia (blue-blind)

#07829F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #665ff0;
/* rgb */ color: rgb(102, 95, 240);
/* oklch */ color: oklch(57.5% 0.211 279.6);

Tailwind

colors: {
  custom: {
    50: '#9e8df6',
    500: '#665ff0',
    950: '#000000',
  },
}

SCSS

$custom: #665ff0;
$custom-light: #9e8df6;
$custom-dark: #000000;

JSON

{
  "hex": "#665ff0",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 240
  },
  "hsl": {
    "h": 242.897,
    "s": 82.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.57489,
    "c": 0.21074,
    "h": 279.6
  },
  "luminance": 0.173
}

Semantic roles & 50–950 ramp

primary

#665FF0

secondary

#EBEEBD

accent

#DF06D5

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665FF0

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

Preview Lab → · Contrast checker → · Palette generator →