#665CFF#665CFF

#665CFF is a mid, highly saturated blue. Relative luminance 0.177; OKLCH L 58.2% C 0.233 H 279.1°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#665CFF
RGB	rgb(102, 92, 255)
HSL	hsl(244, 100%, 68%)
HSV	hsv(244, 64%, 100%)
CMYK	cmyk(60%, 63.9%, 0%, 0%)
CIE-LAB	lab(49.13, 49.38, -79.87)
CIE-LCH	lch(49.13, 93.90, 301.73°)
OKLab	oklab(58.21% 0.0366 -0.23)
OKLCH	oklch(58.21% 0.233 279.1)
XYZ	xyz(27.3509, 17.6970, 96.5629)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CFF #F5FF5C

analogous

#5CA3FF #665CFF #B75CFF

triadic

#665CFF #FF665C #5CFF66

tetradic

#665CFF #FF5CA3 #F5FF5C #5CFFB7

square

#665CFF #FF5CA3 #F5FF5C #5CFFB7

split-complementary

#665CFF #FFB75C #A3FF5C

monochromatic

#0E00E1 #2D1FFF #665CFF #9F99FF #D9D6FF

Accessibility & contrast

On white

4.63

#665CFF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#665CFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #665CFF

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CFF	#FFFFFF	#000000	##FFFFFF
##665CFF	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BFF

Deuteranopia (green-blind)

#006EFC

Tritanopia (blue-blind)

#0086A5

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #665cff;
/* rgb */ color: rgb(102, 92, 255);
/* oklch */ color: oklch(58.2% 0.233 279.1);

Tailwind

colors: {
  custom: {
    50: '#a08bff',
    500: '#665cff',
    950: '#000000',
  },
}

SCSS

$custom: #665cff;
$custom-light: #a08bff;
$custom-dark: #000000;

JSON

{
  "hex": "#665cff",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 255
  },
  "hsl": {
    "h": 243.681,
    "s": 100,
    "l": 68.039
  },
  "oklch": {
    "l": 0.58206,
    "c": 0.23291,
    "h": 279.1
  },
  "luminance": 0.17699
}

Semantic roles & 50–950 ramp

primary

#665CFF

secondary

#F1F4C2

accent

#E600D7

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #665CFF

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

Preview Lab → · Contrast checker → · Palette generator →