What color is #66FF78?

#66FF78 is a light, vivid green, closest to the named color Flora. It belongs to the green family of colors.

What is the RGB value of #66FF78?

The RGB value is 102, 255, 120: 102 red, 255 green and 120 blue on a 0 to 255 scale.

What is the complementary color of #66FF78?

The complementary color is #FF66ED, found by rotating the hue 180° on the color wheel.

Is black or white text better on #66FF78?

Black text. Black text has a contrast ratio of 16.14:1 and white text 1.3:1. WCAG asks for at least 4.5:1 for normal text.

#66FF78 color

#66FF78 rgb(102, 255, 120)

Shades of green

The hex color #66FF78 is a light, vivid green.

In the RGB color model it is made of 40% red, 100% green and 47.1% blue (102, 255, 120).

Its hue angle is 127°, with 100% saturation and 70% lightness. For print, the CMYK equivalent is 60% cyan, 0% magenta, 53% yellow and 0% black.

The closest named color is Flora (#73FA79), a difference of 1.4 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 16.14:1).

#66FF78 color codes

HEX	`#66FF78`
RGB	`rgb(102, 255, 120)`
RGB percent	`rgb(40%, 100%, 47.1%)`
HSL	`hsl(127, 100%, 70%)`
HSV / HSB	`hsv(127, 60%, 100%)`
CMYK	`cmyk(60%, 0%, 53%, 0%)`
CIE LAB	`lab(89.72, -67.06, 52.1)`
CIE LCH	`lch(89.72, 84.92, 142.16)`
CIE XYZ	`xyz(44.627, 75.697, 30.025)`
Decimal	`6750072`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #66FF78, 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 #66FF78	Ratio	AA	AAA	AA large
Sample text	16.14:1	Pass	Pass	Pass
Sample text	1.3:1	Fail	Fail	Fail

#66FF78 as text on	Ratio	AA	AAA	AA large
Sample text	1.3:1	Fail	Fail	Fail
Sample text	16.14:1	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 #66FF78 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #66ff78; }
.text { color: #66ff78; }
.border { border: 2px solid #66ff78; }
.transparent { background-color: rgb(102 255 120 / 50%); }
.gradient { background: linear-gradient(to right, #66ff78, #66ffc4); }

Background

Text color

Border

Similar colors

Questions

What color is #66FF78?: #66FF78 is a light, vivid green, closest to the named color Flora. It belongs to the green family of colors.
What is the RGB value of #66FF78?: The RGB value is 102, 255, 120: 102 red, 255 green and 120 blue on a 0 to 255 scale.
What is the complementary color of #66FF78?: The complementary color is #FF66ED, found by rotating the hue 180° on the color wheel.
Is black or white text better on #66FF78?: Black text. Black text has a contrast ratio of 16.14:1 and white text 1.3:1. WCAG asks for at least 4.5:1 for normal text.