#665AF5#665AF5

#665AF5 is a mid, highly saturated blue. Relative luminance 0.167; OKLCH L 57.1% C 0.223 H 280.1°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#665AF5
RGB	rgb(102, 90, 245)
HSL	hsl(245, 89%, 66%)
HSV	hsv(245, 63%, 96%)
CMYK	cmyk(58.4%, 63.3%, 0%, 3.9%)
CIE-LAB	lab(47.92, 47.45, -76.27)
CIE-LCH	lch(47.92, 89.83, 301.89°)
OKLab	oklab(57.08% 0.0392 -0.2195)
OKLCH	oklch(57.08% 0.223 280.1)
XYZ	xyz(25.6119, 16.7279, 88.2477)
Luminance	0.1673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AF5 #E9F55A

analogous

#5A9BF5 #665AF5 #B35AF5

triadic

#665AF5 #F5665A #5AF566

tetradic

#665AF5 #F55A9B #E9F55A #5AF5B3

square

#665AF5 #F55A9B #E9F55A #5AF5B3

split-complementary

#665AF5 #F5B35A #9BF55A

monochromatic

#1B0CC8 #3020F2 #665AF5 #9C94F8 #D1CDFC

Accessibility & contrast

On white

4.83

#665AF5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#665AF5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AF5

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AF5	#FFFFFF	#000000	##FFFFFF
##665AF5	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078FA

Deuteranopia (green-blind)

#006CF2

Tritanopia (blue-blind)

#00819F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #665af5;
/* rgb */ color: rgb(102, 90, 245);
/* oklch */ color: oklch(57.1% 0.223 280.1);

Tailwind

colors: {
  custom: {
    50: '#9f89fa',
    500: '#665af5',
    950: '#000000',
  },
}

SCSS

$custom: #665af5;
$custom-light: #9f89fa;
$custom-dark: #000000;

JSON

{
  "hex": "#665af5",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 245
  },
  "hsl": {
    "h": 244.645,
    "s": 88.571,
    "l": 65.686
  },
  "oklch": {
    "l": 0.57082,
    "c": 0.22294,
    "h": 280.1
  },
  "luminance": 0.1673
}

Semantic roles & 50–950 ramp

primary

#665AF5

secondary

#EBEFBC

accent

#E500D3

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665AF5

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

Preview Lab → · Contrast checker → · Palette generator →