#665FF8#665FF8

#665FF8 is a mid, highly saturated blue. Relative luminance 0.178; OKLCH L 58.1% C 0.221 H 279.0°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#665FF8
RGB	rgb(102, 95, 248)
HSL	hsl(243, 92%, 67%)
HSV	hsv(243, 62%, 97%)
CMYK	cmyk(58.9%, 61.7%, 0%, 2.7%)
CIE-LAB	lab(49.23, 45.50, -75.80)
CIE-LCH	lch(49.23, 88.41, 300.98°)
OKLab	oklab(58.12% 0.0347 -0.2181)
OKLCH	oklch(58.12% 0.221 279)
XYZ	xyz(26.5096, 17.7846, 90.8246)
Luminance	0.1779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FF8 #F1F85F

analogous

#5FA5F8 #665FF8 #B25FF8

triadic

#665FF8 #F8665F #5FF866

tetradic

#665FF8 #F85FA5 #F1F85F #5FF8B2

square

#665FF8 #F85FA5 #F1F85F #5FF8B2

split-complementary

#665FF8 #F8B25F #A5F85F

monochromatic

#1209D3 #2E24F5 #665FF8 #9E9AFB #D6D4FD

Accessibility & contrast

On white

4.61

#665FF8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#665FF8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #665FF8

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FF8	#FFFFFF	#000000	##FFFFFF
##665FF8	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BFD

Deuteranopia (green-blind)

#006FF5

Tritanopia (blue-blind)

#0085A3

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #665ff8;
/* rgb */ color: rgb(102, 95, 248);
/* oklch */ color: oklch(58.1% 0.221 279.0);

Tailwind

colors: {
  custom: {
    50: '#9f8dfc',
    500: '#665ff8',
    950: '#000000',
  },
}

SCSS

$custom: #665ff8;
$custom-light: #9f8dfc;
$custom-dark: #000000;

JSON

{
  "hex": "#665ff8",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 248
  },
  "hsl": {
    "h": 242.745,
    "s": 91.617,
    "l": 67.255
  },
  "oklch": {
    "l": 0.58116,
    "c": 0.22081,
    "h": 279
  },
  "luminance": 0.17787
}

Semantic roles & 50–950 ramp

primary

#665FF8

secondary

#EFF2C1

accent

#E600DB

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #665FF8

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

Preview Lab → · Contrast checker → · Palette generator →