#665FF5#665FF5

#665FF5 is a mid, highly saturated blue. Relative luminance 0.176; OKLCH L 57.9% C 0.217 H 279.3°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#665FF5
RGB	rgb(102, 95, 245)
HSL	hsl(243, 88%, 67%)
HSV	hsv(243, 61%, 96%)
CMYK	cmyk(58.4%, 61.2%, 0%, 3.9%)
CIE-LAB	lab(49.01, 44.57, -74.49)
CIE-LCH	lch(49.01, 86.81, 300.89°)
OKLab	oklab(57.88% 0.0349 -0.2142)
OKLCH	oklch(57.88% 0.217 279.3)
XYZ	xyz(26.0479, 17.5999, 88.3930)
Luminance	0.1760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FF5 #EEF55F

analogous

#5FA3F5 #665FF5 #B15FF5

triadic

#665FF5 #F5665F #5FF566

tetradic

#665FF5 #F55FA3 #EEF55F #5FF5B1

square

#665FF5 #F55FA3 #EEF55F #5FF5B1

split-complementary

#665FF5 #F5B15F #A3F55F

monochromatic

#160DCD #2F25F1 #665FF5 #9D99F9 #D4D2FC

Accessibility & contrast

On white

4.65

#665FF5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#665FF5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #665FF5

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FF5	#FFFFFF	#000000	##FFFFFF
##665FF5	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFA

Deuteranopia (green-blind)

#006FF2

Tritanopia (blue-blind)

#0084A1

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #665ff5;
/* rgb */ color: rgb(102, 95, 245);
/* oklch */ color: oklch(57.9% 0.217 279.3);

Tailwind

colors: {
  custom: {
    50: '#9e8df9',
    500: '#665ff5',
    950: '#000000',
  },
}

SCSS

$custom: #665ff5;
$custom-light: #9e8df9;
$custom-dark: #000000;

JSON

{
  "hex": "#665ff5",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 245
  },
  "hsl": {
    "h": 242.8,
    "s": 88.235,
    "l": 66.667
  },
  "oklch": {
    "l": 0.57879,
    "c": 0.21704,
    "h": 279.3
  },
  "luminance": 0.17602
}

Semantic roles & 50–950 ramp

primary

#665FF5

secondary

#EEF0C0

accent

#E501DA

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665FF5

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

Preview Lab → · Contrast checker → · Palette generator →