#665EEE#665EEE

#665EEE is a mid, highly saturated blue. Relative luminance 0.170; OKLCH L 57.2% C 0.209 H 279.9°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX#665EEE
RGBrgb(102, 94, 238)
HSLhsl(243, 81%, 65%)
HSVhsv(243, 61%, 93%)
CMYKcmyk(57.1%, 60.5%, 0%, 6.7%)
CIE-LABlab(48.26, 42.98, -71.79)
CIE-LCHlch(48.26, 83.67, 300.91°)
OKLaboklab(57.17% 0.0362 -0.2063)
OKLCHoklch(57.17% 0.209 279.9)
XYZxyz(24.9099, 17.0015, 82.8413)
Luminance0.1700 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#665EEE #E6EE5E
analogous
#5E9EEE #665EEE #AE5EEE
triadic
#665EEE #EE665E #5EEE66
tetradic
#665EEE #EE5E9E #E6EE5E #5EEEAE
square
#665EEE #EE5E9E #E6EE5E #5EEEAE
split-complementary
#665EEE #EEAE5E #9EEE5E
monochromatic
#1D14BE #3127E8 #665EEE #9B95F4 #CFCDFA

Accessibility & contrast

On white

4.77
#665EEE on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.40
#665EEE on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EEE
4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##665EEE#FFFFFF#000000##FFFFFF
##665EEE1.004.774.404.77
#FFFFFF4.771.0021.001.00
#0000004.4021.001.0021.00
##FFFFFF4.771.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0078F3
Deuteranopia (green-blind)
#006DEB
Tritanopia (blue-blind)
#10819D
Achromatopsia (no color)
#737373

Design tokens & code

CSS
--color: #665eee;
/* rgb */ color: rgb(102, 94, 238);
/* oklch */ color: oklch(57.2% 0.209 279.9);
Tailwind
colors: {
  custom: {
    50: '#9d8cf5',
    500: '#665eee',
    950: '#000000',
  },
}
SCSS
$custom: #665eee;
$custom-light: #9d8cf5;
$custom-dark: #000000;
JSON
{
  "hex": "#665eee",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 238
  },
  "hsl": {
    "h": 243.333,
    "s": 80.899,
    "l": 65.098
  },
  "oklch": {
    "l": 0.57169,
    "c": 0.20943,
    "h": 279.9
  },
  "luminance": 0.17003
}

Semantic roles & 50–950 ramp

primary
#665EEE
secondary
#EAECBB
accent
#DD08D1
background
#FAF8FF
surface
#F4F0FE
border
#CECBD6
text
#100C17
muted
#7F7D85

Preview Lab

Preview with #665EEE

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

Preview Lab → · Contrast checker → · Palette generator →

#665EEE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva