#665AF3#665AF3

#665AF3 is a mid, highly saturated blue. Relative luminance 0.166; OKLCH L 56.9% C 0.220 H 280.3°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#665AF3
RGB	rgb(102, 90, 243)
HSL	hsl(245, 86%, 65%)
HSV	hsv(245, 63%, 95%)
CMYK	cmyk(58%, 63%, 0%, 4.7%)
CIE-LAB	lab(47.76, 46.84, -75.41)
CIE-LCH	lch(47.76, 88.77, 301.85°)
OKLab	oklab(56.92% 0.0394 -0.2169)
OKLCH	oklch(56.92% 0.22 280.3)
XYZ	xyz(25.3082, 16.6064, 86.6484)
Luminance	0.1661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AF3 #E7F35A

analogous

#5A9AF3 #665AF3 #B35AF3

triadic

#665AF3 #F3665A #5AF366

tetradic

#665AF3 #F35A9A #E7F35A #5AF3B3

square

#665AF3 #F35A9A #E7F35A #5AF3B3

split-complementary

#665AF3 #F3B35A #9AF35A

monochromatic

#1D0EC4 #3121EF #665AF3 #9B93F7 #D0CCFB

Accessibility & contrast

On white

4.86

#665AF3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#665AF3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AF3

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AF3	#FFFFFF	#000000	##FFFFFF
##665AF3	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F8

Deuteranopia (green-blind)

#006BF0

Tritanopia (blue-blind)

#00809E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665af3;
/* rgb */ color: rgb(102, 90, 243);
/* oklch */ color: oklch(56.9% 0.220 280.3);

Tailwind

colors: {
  custom: {
    50: '#9e89f8',
    500: '#665af3',
    950: '#000000',
  },
}

SCSS

$custom: #665af3;
$custom-light: #9e89f8;
$custom-dark: #000000;

JSON

{
  "hex": "#665af3",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 243
  },
  "hsl": {
    "h": 244.706,
    "s": 86.441,
    "l": 65.294
  },
  "oklch": {
    "l": 0.56921,
    "c": 0.22047,
    "h": 280.3
  },
  "luminance": 0.16608
}

Semantic roles & 50–950 ramp

primary

#665AF3

secondary

#EAEEBB

accent

#E303D1

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665AF3

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

Preview Lab → · Contrast checker → · Palette generator →