#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
RGBrgb(102, 91, 233)
HSLhsl(245, 76%, 64%)
HSVhsv(245, 61%, 91%)
CMYKcmyk(56.2%, 60.9%, 0%, 8.6%)
CIE-LABlab(47.22, 43.19, -70.67)
CIE-LCHlch(47.22, 82.82, 301.43°)
OKLaboklab(56.29% 0.0392 -0.203)
OKLCHoklch(56.29% 0.207 280.9)
XYZxyz(23.9240, 16.1886, 78.9390)
Luminance0.1619 (WCAG relative)
Temperaturecool
Familyblue

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
##665BE91.004.964.244.96
#FFFFFF4.961.0021.001.00
#0000004.2421.001.0021.00
##FFFFFF4.961.0021.001.00

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 →

#665BE9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva