#665AF7#665AF7

#665AF7 is a mid, highly saturated blue. Relative luminance 0.169; OKLCH L 57.2% C 0.225 H 280.0°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#665AF7
RGB	rgb(102, 90, 247)
HSL	hsl(245, 91%, 66%)
HSV	hsv(245, 64%, 97%)
CMYK	cmyk(58.7%, 63.6%, 0%, 3.1%)
CIE-LAB	lab(48.07, 48.07, -77.13)
CIE-LCH	lch(48.07, 90.89, 301.93°)
OKLab	oklab(57.24% 0.039 -0.222)
OKLCH	oklch(57.24% 0.225 280)
XYZ	xyz(25.9188, 16.8507, 89.8643)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AF7 #EBF75A

analogous

#5A9CF7 #665AF7 #B45AF7

triadic

#665AF7 #F7665A #5AF766

tetradic

#665AF7 #F75A9C #EBF75A #5AF7B4

square

#665AF7 #F75A9C #EBF75A #5AF7B4

split-complementary

#665AF7 #F7B45A #9CF75A

monochromatic

#190ACD #3020F4 #665AF7 #9C94FA #D2CFFD

Accessibility & contrast

On white

4.80

#665AF7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#665AF7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AF7

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AF7	#FFFFFF	#000000	##FFFFFF
##665AF7	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078FC

Deuteranopia (green-blind)

#006CF4

Tritanopia (blue-blind)

#0082A1

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #665af7;
/* rgb */ color: rgb(102, 90, 247);
/* oklch */ color: oklch(57.2% 0.225 280.0);

Tailwind

colors: {
  custom: {
    50: '#9f89fb',
    500: '#665af7',
    950: '#000000',
  },
}

SCSS

$custom: #665af7;
$custom-light: #9f89fb;
$custom-dark: #000000;

JSON

{
  "hex": "#665af7",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 247
  },
  "hsl": {
    "h": 244.586,
    "s": 90.751,
    "l": 66.078
  },
  "oklch": {
    "l": 0.57244,
    "c": 0.22541,
    "h": 280
  },
  "luminance": 0.16853
}

Semantic roles & 50–950 ramp

primary

#665AF7

secondary

#ECF0BD

accent

#E600D4

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #665AF7

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

Preview Lab → · Contrast checker → · Palette generator →