#665FF2#665FF2

#665FF2 is a mid, highly saturated blue. Relative luminance 0.174; OKLCH L 57.6% C 0.213 H 279.5°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#665FF2
RGB	rgb(102, 95, 242)
HSL	hsl(243, 85%, 66%)
HSV	hsv(243, 61%, 95%)
CMYK	cmyk(57.9%, 60.7%, 0%, 5.1%)
CIE-LAB	lab(48.78, 43.64, -73.18)
CIE-LCH	lch(48.78, 85.20, 300.81°)
OKLab	oklab(57.64% 0.0351 -0.2104)
OKLCH	oklch(57.64% 0.213 279.5)
XYZ	xyz(25.5936, 17.4182, 86.0006)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FF2 #EBF25F

analogous

#5FA1F2 #665FF2 #AF5FF2

triadic

#665FF2 #F2665F #5FF266

tetradic

#665FF2 #F25FA1 #EBF25F #5FF2AF

square

#665FF2 #F25FA1 #EBF25F #5FF2AF

split-complementary

#665FF2 #F2AF5F #A1F25F

monochromatic

#1910C6 #3026ED #665FF2 #9C98F7 #D2D0FB

Accessibility & contrast

On white

4.68

#665FF2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#665FF2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FF2

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FF2	#FFFFFF	#000000	##FFFFFF
##665FF2	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AF7

Deuteranopia (green-blind)

#006EEF

Tritanopia (blue-blind)

#0083A0

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #665ff2;
/* rgb */ color: rgb(102, 95, 242);
/* oklch */ color: oklch(57.6% 0.213 279.5);

Tailwind

colors: {
  custom: {
    50: '#9e8df7',
    500: '#665ff2',
    950: '#000000',
  },
}

SCSS

$custom: #665ff2;
$custom-light: #9e8df7;
$custom-dark: #000000;

JSON

{
  "hex": "#665ff2",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 242
  },
  "hsl": {
    "h": 242.857,
    "s": 84.971,
    "l": 66.078
  },
  "oklch": {
    "l": 0.57644,
    "c": 0.21327,
    "h": 279.5
  },
  "luminance": 0.1742
}

Semantic roles & 50–950 ramp

primary

#665FF2

secondary

#ECEFBE

accent

#E104D7

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665FF2

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

Preview Lab → · Contrast checker → · Palette generator →