Information about #66A778 color

#66A778 color image

Basic facts about this digital color

The digital color #66A778 is classified in the Register under the Spring Green Color Family, with Mild Saturation and Light brightness. Its exact recipe is rgb(102, 167, 120) — 40% red, 65.5% green, 47.1% blue — and for print it converts to CMYK 25 / 0 / 18 / 35. New to color codes? See our guide to RGB color codes.

A softly balanced spring green, #66A778 feels open and friendly. Designers typically reach for tones like this for understated, calm designs that favor harmony over drama. In The Official Register of Color Names it is a hair away from Tea (#65AB7C). Its next-closest registered neighbors are Shiny Shamrock (#5FA778) and Oxley (#6D9A79).

Technically, the mix leans on its green channel (rgb(102, 167, 120)), which gives #66A778 its character. If you plan to put text on a #66A778 background, choose black — the contrast ratio is 7.4:1 (passing WCAG AAA), while white manages only 2.9:1. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.

#66A778 color variations

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

#66A778 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 #66A778

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

Tea color link
Tea

#65AB7C

Oxley color link
Oxley

#6D9A79

Dusty Green color link
Dusty Green

#76A973

Grey Green color link
Grey Green

#789B73

Boring Green color link
Boring Green

#63B365

Grey Teal color link
Grey Teal

#5E9B8A

Fern color link
Fern

#71BC78

Faded Green color link
Faded Green

#7BB274

Algae color link
Algae

#54AC68

Greeny Grey color link
Greeny Grey

#7EA07A

Conversions between color systems and etc.

  • HEX#66A778
  • RGB102, 167, 120
  • CMYK25, 0, 18, 35
  • CSSrgb(102, 167, 120)
  • HSL137°, 27%, 53%
  • HSL Precise136.615°, 26.971%, 52.745%
  • HSV137°, 39%, 65%
  • HSB137°, 39%, 65%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.655
  • Normalized B (0.0–1.0)0.471
  • GLSLvec3(0.400, 0.655, 0.471)
  • GLSL with alphavec4(0.400, 0.655, 0.471, 1.000)
  • HLSL / Metalfloat3(0.400, 0.655, 0.471)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB65.5%
  • Percentage of Blue in RGB47.1%
  • Color FamilySpring Green
  • Saturation FamilyMild Saturation
  • Lightness FamilyLight
  • HEX ID66A778
  • DECIMAL ID6727544
  • Name LengthThis color has no name
  • Seen by search & AI crawlers9 times
  • Counting from2025-01-01