#665AF1#665AF1

#665AF1 is a mid, highly saturated blue. Relative luminance 0.165; OKLCH L 56.8% C 0.218 H 280.4°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#665AF1
RGB	rgb(102, 90, 241)
HSL	hsl(245, 84%, 65%)
HSV	hsv(245, 63%, 95%)
CMYK	cmyk(57.7%, 62.7%, 0%, 5.5%)
CIE-LAB	lab(47.61, 46.23, -74.54)
CIE-LCH	lch(47.61, 87.71, 301.81°)
OKLab	oklab(56.76% 0.0395 -0.2144)
OKLCH	oklch(56.76% 0.218 280.4)
XYZ	xyz(25.0078, 16.4863, 85.0664)
Luminance	0.1649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AF1 #E5F15A

analogous

#5A9AF1 #665AF1 #B15AF1

triadic

#665AF1 #F1665A #5AF166

tetradic

#665AF1 #F15A9A #E5F15A #5AF1B1

square

#665AF1 #F15A9A #E5F15A #5AF1B1

split-complementary

#665AF1 #F1B15A #9AF15A

monochromatic

#1E10C0 #3222EC #665AF1 #9A92F6 #CFCBFB

Accessibility & contrast

On white

4.89

#665AF1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#665AF1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AF1

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AF1	#FFFFFF	#000000	##FFFFFF
##665AF1	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F6

Deuteranopia (green-blind)

#006BEE

Tritanopia (blue-blind)

#06809D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665af1;
/* rgb */ color: rgb(102, 90, 241);
/* oklch */ color: oklch(56.8% 0.218 280.4);

Tailwind

colors: {
  custom: {
    50: '#9e89f7',
    500: '#665af1',
    950: '#000000',
  },
}

SCSS

$custom: #665af1;
$custom-light: #9e89f7;
$custom-dark: #000000;

JSON

{
  "hex": "#665af1",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 241
  },
  "hsl": {
    "h": 244.768,
    "s": 84.358,
    "l": 64.902
  },
  "oklch": {
    "l": 0.5676,
    "c": 0.21799,
    "h": 280.4
  },
  "luminance": 0.16488
}

Semantic roles & 50–950 ramp

primary

#665AF1

secondary

#E9EDBA

accent

#E105CF

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665AF1

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

Preview Lab → · Contrast checker → · Palette generator →