Color Name
Screamin Green (Ultra Green)*
Hex Color Code
#66FF5B
RGB Color Code
RGB(102, 255, 91)
CMYK Values*
60.0%, 0.0%, 64.3%, 0.0%
#66FF5B hex color. RGB, RYB, CMYK, HSL, HSV codes and color conversions. Matching color names, palettes, paints.

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What color is 66FF5B?

The RGB color code for color number #66FF5B is RGB(102, 255, 91). In the RGB color model, #66FF5B has a red value of 102, a green value of 255, and a blue value of 91. The CMYK color model (also known as process color, used in color printing) comprises 60.0% cyan, 0.0% magenta, 64.3% yellow, and 0.0% key (black). The HSL color scale has a hue of 116° (degrees), 100.0 % saturation, and 67.8 % lightness. In the HSB/HSV color space, #66FF5B has a hue of 116° (degrees), 64.3 % saturation and 100.0 % brightness/value.

Color 66FF5B is cool or warm?

Color 66FF5B is a cool color.

What is the LRV of #66FF5B? (For interior and product design)

66FF5B has an LRV of nearly 75. By LRV value, it is a off-white color.

Light Reflectance Value (LRV) is a measure of how much visible light is reflected off a surface. It is a number on a scale of 0 to 100, with 0 being pure black and 100 being pure white. The higher the LRV, the more light the color reflects and the lighter it will appear.

Dark Color
#66FF5B
LRV 75
Light Color

Compare LRV 75 of #66FF5B with dark and light color

Is #66FF5B Readable? WCAG Contrast Checker (For digital design)

Check if the color 66FF5B meets Web Content Accessibility Guidelines (WCAG) standards, minimum contrast ratio standards between text and background colors. The WCAG (Web Content Accessibility Guidelines) provides global standards for readable web content.

WCAG Recommendations - Large Text: above 18pt or 14pt bold. Normal Text: below 18pt or 14pt bold.

  • Minimum contrast ratio (AA): 4.5 for normal text and 3 for large text.
  • Enhanced contrast ratio (AAA): 7 for normal text and 4.5 for large text.

Normal text - 14pt

Normal Bold text - 12pt


Large text - 18pt

Large Bold text - 14pt

Color Codes - Color Space Conversions

HEX #66FF5B color codes / color number / color space conversions - RGBA, HSL, HSV/HSB, HYZ, CMY, HWB, RYB

HEX #66FF5B
Hex triplet
#66FF5B
Red
66
Green
FF
Blue
5B
RGBA / RGB rgb(102, 255, 91)
Red
102 (40.0%)
Green
255 (100.0%)
Blue
91 (35.7%)
Alpha
1 (100.0%)
CMYK
Cyan
60.00%
Magenta
0.00%
Yellow
64.31%
Key
0.00%
HSL hsl(115.98deg, 100.0 %, 67.8 %)
Hue
115.98°
Saturation
100.00 %
Lightness
67.84 %
HSV / HSB
Hue
115.98°
Saturation
64.31 %
Brightness / Value
100.00 %
RYB ryb(0, 167, 59)
Red
0 (0.0%)
Yellow
167 (65.4%)
Blue
59 (23.1%)
HWB
Hue
115.98°
Whiteness
35.69 %
Blackness
0.00 %
CMY
Cyan
60.00%
Magenta
0.00%
Yellow
64.31%
XYZ
X
43.13
Y
75.1
Z
22.12
YXY
Y1
75.1
X
0.31
Y2
0.54
CIE-Lab
L
89.44
A
-70.27
B
64.22
CIE-Lch
L
89.44
C
95.19
H
137.57
CIE-Luv
L
89.44
U
-67.75
V
91.29
Hunter-Lab
L
86.66
A
-62.82
B
45.53
Other
LRV
~ 75.1 %
Munsell Color System
10GY 9.0/16

Color Names, Similar Colors and Paint

What is Delta E (ΔE)?

Delta E is the standard measure of how different two colors look to the human eye, rather than how far apart their hex codes happen to be. It runs from 0, an exact match, to 100, the largest possible difference — so the lower the Delta E, the closer the match. The match percentage shown on each color below is simply 100% minus its ΔE.

ΔE 0
Identical – an exact match
ΔE under 1
Not perceptible; the eye cannot separate them
ΔE 1 – 2
Perceptible only on close, side-by-side inspection
ΔE 2 – 10
Perceptible at a glance
ΔE over 10
Reads as a different color altogether

Color Name of HEX #66FF5B

These are the named colors closest to hex 66FF5B, closest match first. Each card shows how much of the color the human eye sees as the same, measured as Delta E (ΔE).

#00FF40 Color Erin
96.93% match | ΔE 3.07
#76FF7A Color Ultra Green
96.80% match | ΔE 3.20
#39FF14 Color Neon Green
96.00% match | ΔE 4.00

Similar colors from Pantone, RAL and other color matching system


Pantone PMS

Pantone PMS color similar/equivalent to 66FF5B.

#8DE971 Color PANTONE 902 C
93.59% match | ΔE 6.41

Paint color for Hex #66FF5B

These are the real paint colors closest to hex 66FF5B from major brands, ranked by Delta E (ΔE) match. A paint above 98% will be hard to tell apart from 66FF5B once it is on a wall.


Benjamin Moore

Hex color 66FF5B similar/equivalent paint from Benjamin Moore. Conversion of hex #66FF5B to Benjamin Moore


PPG Paints

Hex color 66FF5B similar/equivalent paint from PPG Paints. Conversion of hex #66FF5B to PPG Paints


Behr

Hex color 66FF5B similar/equivalent paint from Behr. Conversion of hex #66FF5B to Behr


Dunn-Edwards

Hex color 66FF5B similar/equivalent paint from Dunn-Edwards. Conversion of hex #66FF5B to Dunn-Edwards


Valspar

Hex color 66FF5B similar/equivalent paint from Valspar. Conversion of hex #66FF5B to Valspar


Sherwin Williams

Hex color 66FF5B similar/equivalent paint from Sherwin Williams. Conversion of hex #66FF5B to Sherwin Williams


Color Combinations and Matching Colors

#66FF5B color palettes and scheme combination

Monochromatic Color Palette

Monochromatic colors belong to the same hue angle but different tints and shades. Monochromatic color palette can be generated by keeping the exact hue of the base color and then changing the saturation and lightness.

Analogous Color Palette

Analogous colors are a group of colors adjacent to each other on a color wheel. Group of these adjacent colors forms Analogous color scheme Palette. Analogous Palette can be generated by increasing or decreasing the hue value by 30 points.

Triadic Color Palette

The triadic color palette has three colors separated by 120° in the RGB color wheel

Tetradic Color Palette

The tetradic colour scheme composed of two sets of complementary colors in a rectangular shape on the color wheel.

Complementary / Opposite Color

#66FF5B
Screamin Green (Ultra Green)*
#F45BFF
Fluorescent Pink*

Complementary / Opposite Color

Complementary colors are pairs of colors which, when combined or mixed, cancel each other out (lose hue) by producing a grayscale color like white or black. When placed next to each other, they create the strongest contrast for those two colors. Complementary colors also called opposite colors. Complementary color schemes are created using two opposite colors on the color wheel. The examples are red–cyan, green–magenta, and blue–yellow.

What is the contrasting color of #66FF5B?

Color that best contrast with #66FF5B is #F45BFF, color name is Fluorescent Pink*. Contrast indicates a strong difference in color. Contrasting color can be found several ways, Complimentary contrast is one of them. Complementary contrast colors are opposite each other on the color wheel.

What color compliments #66FF5B?

Complementary or Opposite color for #66FF5B is #F45BFF, color name is Fluorescent Pink*.

Color Images and Mockup

Mobile app mockup example for #66FF5B color
T-Shirt mockup example for #66FF5B color
Chart visualization example with #66FF5B color

#66FF5B Color Images and Patterns