#665CF5#665CF5

#665CF5 is a mid, highly saturated blue. Relative luminance 0.171; OKLCH L 57.4% C 0.221 H 279.8°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#665CF5
RGB	rgb(102, 92, 245)
HSL	hsl(244, 88%, 66%)
HSV	hsv(244, 62%, 96%)
CMYK	cmyk(58.4%, 62.4%, 0%, 3.9%)
CIE-LAB	lab(48.35, 46.31, -75.57)
CIE-LCH	lch(48.35, 88.63, 301.50°)
OKLab	oklab(57.4% 0.0375 -0.2174)
OKLCH	oklch(57.4% 0.221 279.8)
XYZ	xyz(25.7829, 17.0698, 88.3047)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CF5 #EBF55C

analogous

#5C9EF5 #665CF5 #B35CF5

triadic

#665CF5 #F5665C #5CF566

tetradic

#665CF5 #F55C9E #EBF55C #5CF5B3

square

#665CF5 #F55C9E #EBF55C #5CF5B3

split-complementary

#665CF5 #F5B35C #9EF55C

monochromatic

#190CCA #3022F1 #665CF5 #9C96F9 #D2CFFC

Accessibility & contrast

On white

4.76

#665CF5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#665CF5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CF5

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CF5	#FFFFFF	#000000	##FFFFFF
##665CF5	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079FA

Deuteranopia (green-blind)

#006DF2

Tritanopia (blue-blind)

#0082A0

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #665cf5;
/* rgb */ color: rgb(102, 92, 245);
/* oklch */ color: oklch(57.4% 0.221 279.8);

Tailwind

colors: {
  custom: {
    50: '#9f8bfa',
    500: '#665cf5',
    950: '#000000',
  },
}

SCSS

$custom: #665cf5;
$custom-light: #9f8bfa;
$custom-dark: #000000;

JSON

{
  "hex": "#665cf5",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 245
  },
  "hsl": {
    "h": 243.922,
    "s": 88.439,
    "l": 66.078
  },
  "oklch": {
    "l": 0.57397,
    "c": 0.2206,
    "h": 279.8
  },
  "luminance": 0.17072
}

Semantic roles & 50–950 ramp

primary

#665CF5

secondary

#ECF0BD

accent

#E500D6

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665CF5

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

Preview Lab → · Contrast checker → · Palette generator →