#665BE9#665BE9

#665BE9 is a mid, highly saturated blue. Relative luminance 0.162; OKLCH L 56.3% C 0.207 H 280.9°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#665BE9
RGB	rgb(102, 91, 233)
HSL	hsl(245, 76%, 64%)
HSV	hsv(245, 61%, 91%)
CMYK	cmyk(56.2%, 60.9%, 0%, 8.6%)
CIE-LAB	lab(47.22, 43.19, -70.67)
CIE-LCH	lch(47.22, 82.82, 301.43°)
OKLab	oklab(56.29% 0.0392 -0.203)
OKLCH	oklch(56.29% 0.207 280.9)
XYZ	xyz(23.9240, 16.1886, 78.9390)
Luminance	0.1619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BE9 #DEE95B

analogous

#5B97E9 #665BE9 #AD5BE9

triadic

#665BE9 #E9665B #5BE966

tetradic

#665BE9 #E95B97 #DEE95B #5BE9AD

square

#665BE9 #E95B97 #DEE95B #5BE9AD

split-complementary

#665BE9 #E9AD5B #97E95B

monochromatic

#2418B2 #3425E2 #665BE9 #9891F0 #CBC7F7

Accessibility & contrast

On white

4.96

#665BE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#665BE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BE9

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BE9	#FFFFFF	#000000	##FFFFFF
##665BE9	1.00	4.96	4.24	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075EE

Deuteranopia (green-blind)

#006BE6

Tritanopia (blue-blind)

#1E7E99

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665be9;
/* rgb */ color: rgb(102, 91, 233);
/* oklch */ color: oklch(56.3% 0.207 280.9);

Tailwind

colors: {
  custom: {
    50: '#9d8af1',
    500: '#665be9',
    950: '#000000',
  },
}

SCSS

$custom: #665be9;
$custom-light: #9d8af1;
$custom-dark: #000000;

JSON

{
  "hex": "#665be9",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 233
  },
  "hsl": {
    "h": 244.648,
    "s": 76.344,
    "l": 63.529
  },
  "oklch": {
    "l": 0.5629,
    "c": 0.20675,
    "h": 280.9
  },
  "luminance": 0.1619
}

Semantic roles & 50–950 ramp

primary

#665BE9

secondary

#E5E9B7

accent

#D90DC9

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #665BE9

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

Preview Lab → · Contrast checker → · Palette generator →