What color is #66D709?

#66D709 is a vivid green, closest to the named color Corrosive Green. It belongs to the green family of colors.

What is the RGB value of #66D709?

The RGB value is 102, 215, 9: 102 red, 215 green and 9 blue on a 0 to 255 scale.

What is the complementary color of #66D709?

The complementary color is #7A09D7, found by rotating the hue 180° on the color wheel.

Is black or white text better on #66D709?

Black text. Black text has a contrast ratio of 11.29:1 and white text 1.86:1. WCAG asks for at least 4.5:1 for normal text.

#66D709 color

#66D709 rgb(102, 215, 9)

Shades of green

The hex color #66D709 is a vivid green.

In the RGB color model it is made of 40% red, 84.3% green and 3.5% blue (102, 215, 9).

Its hue angle is 93°, with 92% saturation and 44% lightness. For print, the CMYK equivalent is 53% cyan, 0% magenta, 96% yellow and 16% black.

The closest named color is Corrosive Green (#54D905), a difference of 1.5 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 11.29:1).

#66D709 color codes

HEX	`#66D709`
RGB	`rgb(102, 215, 9)`
RGB percent	`rgb(40%, 84.3%, 3.5%)`
HSL	`hsl(93, 92%, 44%)`
HSV / HSB	`hsv(93, 96%, 84%)`
CMYK	`cmyk(53%, 0%, 96%, 16%)`
CIE LAB	`lab(76.95, -60.85, 74.39)`
CIE LCH	`lch(76.95, 96.11, 129.28)`
CIE XYZ	`xyz(29.828, 51.443, 8.616)`
Decimal	`6739721`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #66D709, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #66D709	Ratio	AA	AAA	AA large
Sample text	11.29:1	Pass	Pass	Pass
Sample text	1.86:1	Fail	Fail	Fail

#66D709 as text on	Ratio	AA	AAA	AA large
Sample text	1.86:1	Fail	Fail	Fail
Sample text	11.29:1	Pass	Pass	Pass

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #66D709 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #66d709; }
.text { color: #66d709; }
.border { border: 2px solid #66d709; }
.transparent { background-color: rgb(102 215 9 / 50%); }
.gradient { background: linear-gradient(to right, #66d709, #09d713); }

Background

Text color

Border

Similar colors

Closest common color name: Kiwi.

Questions

What color is #66D709?: #66D709 is a vivid green, closest to the named color Corrosive Green. It belongs to the green family of colors.
What is the RGB value of #66D709?: The RGB value is 102, 215, 9: 102 red, 215 green and 9 blue on a 0 to 255 scale.
What is the complementary color of #66D709?: The complementary color is #7A09D7, found by rotating the hue 180° on the color wheel.
Is black or white text better on #66D709?: Black text. Black text has a contrast ratio of 11.29:1 and white text 1.86:1. WCAG asks for at least 4.5:1 for normal text.