#665FF6#665FF6

#665FF6 is a mid, highly saturated blue. Relative luminance 0.177; OKLCH L 58.0% C 0.218 H 279.2°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#665FF6
RGB	rgb(102, 95, 246)
HSL	hsl(243, 89%, 67%)
HSV	hsv(243, 61%, 96%)
CMYK	cmyk(58.5%, 61.4%, 0%, 3.5%)
CIE-LAB	lab(49.08, 44.88, -74.93)
CIE-LCH	lch(49.08, 87.34, 300.92°)
OKLab	oklab(57.96% 0.0348 -0.2155)
OKLCH	oklch(57.96% 0.218 279.2)
XYZ	xyz(26.2010, 17.6611, 89.1992)
Luminance	0.1766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FF6 #EFF65F

analogous

#5FA4F6 #665FF6 #B15FF6

triadic

#665FF6 #F6665F #5FF666

tetradic

#665FF6 #F65FA4 #EFF65F #5FF6B1

square

#665FF6 #F65FA4 #EFF65F #5FF6B1

split-complementary

#665FF6 #F6B15F #A4F65F

monochromatic

#150CCF #2F25F3 #665FF6 #9D99F9 #D5D3FD

Accessibility & contrast

On white

4.63

#665FF6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#665FF6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #665FF6

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FF6	#FFFFFF	#000000	##FFFFFF
##665FF6	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BFB

Deuteranopia (green-blind)

#006FF3

Tritanopia (blue-blind)

#0084A2

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #665ff6;
/* rgb */ color: rgb(102, 95, 246);
/* oklch */ color: oklch(58.0% 0.218 279.2);

Tailwind

colors: {
  custom: {
    50: '#9f8dfa',
    500: '#665ff6',
    950: '#000000',
  },
}

SCSS

$custom: #665ff6;
$custom-light: #9f8dfa;
$custom-dark: #000000;

JSON

{
  "hex": "#665ff6",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 246
  },
  "hsl": {
    "h": 242.781,
    "s": 89.349,
    "l": 66.863
  },
  "oklch": {
    "l": 0.57958,
    "c": 0.2183,
    "h": 279.2
  },
  "luminance": 0.17663
}

Semantic roles & 50–950 ramp

primary

#665FF6

secondary

#EEF1C0

accent

#E600DB

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665FF6

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

Preview Lab → · Contrast checker → · Palette generator →