What color is #66FE99?

#66FE99 is a light, vivid green, closest to the named color Illicit Green. It belongs to the green family of colors.

What is the RGB value of #66FE99?

The RGB value is 102, 254, 153: 102 red, 254 green and 153 blue on a 0 to 255 scale.

What is the complementary color of #66FE99?

The complementary color is #FE66CB, found by rotating the hue 180° on the color wheel.

Is black or white text better on #66FE99?

Black text. Black text has a contrast ratio of 16.2:1 and white text 1.3:1. WCAG asks for at least 4.5:1 for normal text.

#66FE99 color

#66FE99 rgb(102, 254, 153)

Shades of green

The hex color #66FE99 is a light, vivid green.

In the RGB color model it is made of 40% red, 99.6% green and 60% blue (102, 254, 153).

Its hue angle is 140°, with 99% saturation and 70% lightness. For print, the CMYK equivalent is 60% cyan, 0% magenta, 40% yellow and 0% black.

The closest named color is Illicit Green (#56FCA2), a difference of 2.3 ΔE, a small difference.

Black text is the more readable choice on this background (contrast 16.2:1).

#66FE99 color codes

HEX	`#66FE99`
RGB	`rgb(102, 254, 153)`
RGB percent	`rgb(40%, 99.6%, 60%)`
HSL	`hsl(140, 99%, 70%)`
HSV / HSB	`hsv(140, 60%, 100%)`
CMYK	`cmyk(60%, 0%, 40%, 0%)`
CIE LAB	`lab(89.86, -61.84, 36.54)`
CIE LCH	`lch(89.86, 71.83, 149.43)`
CIE XYZ	`xyz(46.667, 76.004, 42.342)`
Decimal	`6749849`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #66FE99, 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 #66FE99	Ratio	AA	AAA	AA large
Sample text	16.2:1	Pass	Pass	Pass
Sample text	1.3:1	Fail	Fail	Fail

#66FE99 as text on	Ratio	AA	AAA	AA large
Sample text	1.3:1	Fail	Fail	Fail
Sample text	16.2:1	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 #66FE99 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #66fe99; }
.text { color: #66fe99; }
.border { border: 2px solid #66fe99; }
.transparent { background-color: rgb(102 254 153 / 50%); }
.gradient { background: linear-gradient(to right, #66fe99, #66fee5); }

Background

Text color

Border

Similar colors

Questions

What color is #66FE99?: #66FE99 is a light, vivid green, closest to the named color Illicit Green. It belongs to the green family of colors.
What is the RGB value of #66FE99?: The RGB value is 102, 254, 153: 102 red, 254 green and 153 blue on a 0 to 255 scale.
What is the complementary color of #66FE99?: The complementary color is #FE66CB, found by rotating the hue 180° on the color wheel.
Is black or white text better on #66FE99?: Black text. Black text has a contrast ratio of 16.2:1 and white text 1.3:1. WCAG asks for at least 4.5:1 for normal text.