#665BF2#665BF2

#665BF2 is a mid, highly saturated blue. Relative luminance 0.167; OKLCH L 57.0% C 0.218 H 280.2°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#665BF2
RGB	rgb(102, 91, 242)
HSL	hsl(244, 85%, 65%)
HSV	hsv(244, 62%, 95%)
CMYK	cmyk(57.9%, 62.4%, 0%, 5.1%)
CIE-LAB	lab(47.90, 45.96, -74.62)
CIE-LCH	lch(47.90, 87.64, 301.63°)
OKLab	oklab(57% 0.0386 -0.2146)
OKLCH	oklch(57% 0.218 280.2)
XYZ	xyz(25.2425, 16.7160, 85.8835)
Luminance	0.1672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BF2 #E7F25B

analogous

#5B9BF2 #665BF2 #B25BF2

triadic

#665BF2 #F2665B #5BF266

tetradic

#665BF2 #F25B9B #E7F25B #5BF2B2

square

#665BF2 #F25B9B #E7F25B #5BF2B2

split-complementary

#665BF2 #F2B25B #9BF25B

monochromatic

#1D0FC3 #3122EE #665BF2 #9B94F6 #D0CCFB

Accessibility & contrast

On white

4.83

#665BF2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#665BF2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BF2

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BF2	#FFFFFF	#000000	##FFFFFF
##665BF2	1.00	4.83	4.34	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F7

Deuteranopia (green-blind)

#006CEF

Tritanopia (blue-blind)

#00819E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #665bf2;
/* rgb */ color: rgb(102, 91, 242);
/* oklch */ color: oklch(57.0% 0.218 280.2);

Tailwind

colors: {
  custom: {
    50: '#9e8af7',
    500: '#665bf2',
    950: '#000000',
  },
}

SCSS

$custom: #665bf2;
$custom-light: #9e8af7;
$custom-dark: #000000;

JSON

{
  "hex": "#665bf2",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 242
  },
  "hsl": {
    "h": 244.371,
    "s": 85.311,
    "l": 65.294
  },
  "oklch": {
    "l": 0.56999,
    "c": 0.21805,
    "h": 280.2
  },
  "luminance": 0.16718
}

Semantic roles & 50–950 ramp

primary

#665BF2

secondary

#EAEEBB

accent

#E204D2

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665BF2

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

Preview Lab → · Contrast checker → · Palette generator →