Information about #645B9A color

#645B9A color image

Basic facts about this digital color

In the Register's classification, #645B9A belongs to the Blue Color Family, featuring Mild Saturation and Light brightness. In numbers: rgb(100, 91, 154) (39.2% red, 35.7% green, 60.4% blue), or CMYK 21 / 25 / 0 / 40 for print. New to color codes? See our guide to RGB color codes.

A mildly saturated blue, #645B9A carries an easy, daylight feel. Designers typically reach for tones like this for versatile mid-ground roles, from cards to secondary buttons. In The Official Register of Color Names it is very close to Dark Blue Gray (#666699). Slightly further away sit Scampi (#6F63A0) and Butterfly Bush (#68578C).

Technically, the mix leans on its blue channel (rgb(100, 91, 154)), which gives #645B9A its character. Accessibility-wise, white text works best on #645B9A: 6.0:1 contrast (passing WCAG AA) versus 3.5:1 for black. No one has named #645B9A so far. Register a name for it and it becomes a permanent record.

#645B9A color variations

View this color variations of tints, shades, tones and hues.

#645B9A color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes

Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme

Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme

Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme

Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme

Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme

Nearest named colors to #645B9A

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Scampi color link
Scampi

#6F63A0

Deloras color link
Deloras

#606AA1

Kimberly color link
Kimberly

#695D87

Governor Bay color link
Governor Bay

#51559B

Liberty color link
Liberty

#545AA7

Breakwater color link
Breakwater

#536893

Waikawa Grey color link
Waikawa Grey

#5B6E91

Ferris Wheel color link
Ferris Wheel

#724AA1

Conversions between color systems and etc.

  • HEX#645B9A
  • RGB100, 91, 154
  • CMYK21, 25, 0, 40
  • CSSrgb(100, 91, 154)
  • HSL249°, 26%, 48%
  • HSL Precise248.571°, 25.714%, 48.039%
  • HSV249°, 41%, 60%
  • HSB249°, 41%, 60%
  • Normalized R (0.0–1.0)0.392
  • Normalized G (0.0–1.0)0.357
  • Normalized B (0.0–1.0)0.604
  • GLSLvec3(0.392, 0.357, 0.604)
  • GLSL with alphavec4(0.392, 0.357, 0.604, 1.000)
  • HLSL / Metalfloat3(0.392, 0.357, 0.604)
  • Percentage of Red in RGB39.2%
  • Percentage of Green in RGB35.7%
  • Percentage of Blue in RGB60.4%
  • Color FamilyBlue
  • Saturation FamilyMild Saturation
  • Lightness FamilyLight
  • HEX ID645B9A
  • DECIMAL ID6577050
  • Name LengthThis color has no name
  • Seen by search & AI crawlers20 times
  • Counting from2025-01-01