#665EEB#665EEB

#665EEB is a mid, highly saturated blue. Relative luminance 0.168; OKLCH L 56.9% C 0.206 H 280.2°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#665EEB
RGB	rgb(102, 94, 235)
HSL	hsl(243, 78%, 65%)
HSV	hsv(243, 60%, 92%)
CMYK	cmyk(56.6%, 60%, 0%, 7.8%)
CIE-LAB	lab(48.04, 42.05, -70.46)
CIE-LCH	lch(48.04, 82.06, 300.83°)
OKLab	oklab(56.94% 0.0363 -0.2024)
OKLCH	oklch(56.94% 0.206 280.2)
XYZ	xyz(24.4729, 16.8267, 80.5394)
Luminance	0.1683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EEB #E3EB5E

analogous

#5E9DEB #665EEB #AC5EEB

triadic

#665EEB #EB665E #5EEB66

tetradic

#665EEB #EB5E9D #E3EB5E #5EEBAC

square

#665EEB #EB5E9D #E3EB5E #5EEBAC

split-complementary

#665EEB #EBAC5E #9DEB5E

monochromatic

#2017B8 #3228E4 #665EEB #9A94F2 #CDCBF9

Accessibility & contrast

On white

4.81

#665EEB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#665EEB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EEB

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EEB	#FFFFFF	#000000	##FFFFFF
##665EEB	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F0

Deuteranopia (green-blind)

#006DE8

Tritanopia (blue-blind)

#19809C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #665eeb;
/* rgb */ color: rgb(102, 94, 235);
/* oklch */ color: oklch(56.9% 0.206 280.2);

Tailwind

colors: {
  custom: {
    50: '#9d8cf2',
    500: '#665eeb',
    950: '#000000',
  },
}

SCSS

$custom: #665eeb;
$custom-light: #9d8cf2;
$custom-dark: #000000;

JSON

{
  "hex": "#665eeb",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 235
  },
  "hsl": {
    "h": 243.404,
    "s": 77.901,
    "l": 64.51
  },
  "oklch": {
    "l": 0.56938,
    "c": 0.20561,
    "h": 280.2
  },
  "luminance": 0.16828
}

Semantic roles & 50–950 ramp

primary

#665EEB

secondary

#E8EBBA

accent

#DA0BCE

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #665EEB

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

Preview Lab → · Contrast checker → · Palette generator →