#6660EE#6660EE

#6660EE is a mid, highly saturated blue. Relative luminance 0.174; OKLCH L 57.5% C 0.207 H 279.6°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX#6660EE
RGBrgb(102, 96, 238)
HSLhsl(243, 81%, 65%)
HSVhsv(243, 60%, 93%)
CMYKcmyk(57.1%, 59.7%, 0%, 6.7%)
CIE-LABlab(48.71, 41.81, -71.05)
CIE-LCHlch(48.71, 82.44, 300.47°)
OKLaboklab(57.5% 0.0343 -0.2041)
OKLCHoklch(57.5% 0.207 279.6)
XYZxyz(25.0901, 17.3618, 82.9014)
Luminance0.1736 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6660EE #E8EE60
analogous
#60A1EE #6660EE #AD60EE
triadic
#6660EE #EE6660 #60EE66
tetradic
#6660EE #EE60A1 #E8EE60 #60EEAD
square
#6660EE #EE60A1 #E8EE60 #60EEAD
split-complementary
#6660EE #EEAD60 #A1EE60
monochromatic
#1C14BF #3129E8 #6660EE #9B97F4 #D0CFFA

Accessibility & contrast

On white

4.70
#6660EE on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.47
#6660EE on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6660EE
4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6660EE#FFFFFF#000000##FFFFFF
##6660EE1.004.704.474.70
#FFFFFF4.701.0021.001.00
#0000004.4721.001.0021.00
##FFFFFF4.701.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0079F3
Deuteranopia (green-blind)
#006EEB
Tritanopia (blue-blind)
#10829E
Achromatopsia (no color)
#747474

Design tokens & code

CSS
--color: #6660ee;
/* rgb */ color: rgb(102, 96, 238);
/* oklch */ color: oklch(57.5% 0.207 279.6);
Tailwind
colors: {
  custom: {
    50: '#9d8df4',
    500: '#6660ee',
    950: '#000000',
  },
}
SCSS
$custom: #6660ee;
$custom-light: #9d8df4;
$custom-dark: #000000;
JSON
{
  "hex": "#6660ee",
  "rgb": {
    "r": 102,
    "g": 96,
    "b": 238
  },
  "hsl": {
    "h": 242.535,
    "s": 80.682,
    "l": 65.49
  },
  "oklch": {
    "l": 0.57501,
    "c": 0.20698,
    "h": 279.6
  },
  "luminance": 0.17364
}

Semantic roles & 50–950 ramp

primary
#6660EE
secondary
#EBEDBD
accent
#DD08D4
background
#FAF8FF
surface
#F4F0FE
border
#CECBD6
text
#100C17
muted
#7F7D85

Preview Lab

Preview with #6660EE

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

Preview Lab → · Contrast checker → · Palette generator →

#6660EE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva