What color is #3FFF00?

#3FFF00 is a vivid green, closest to the named color Signal Green. It belongs to the green family of colors.

What is the RGB value of #3FFF00?

The RGB value is 63, 255, 0: 63 red, 255 green and 0 blue on a 0 to 255 scale.

What is the complementary color of #3FFF00?

The complementary color is #C000FF, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3FFF00?

Black text. Black text has a contrast ratio of 15.52:1 and white text 1.35:1. WCAG asks for at least 4.5:1 for normal text.

#3FFF00 color

#3FFF00 rgb(63, 255, 0)

Shades of green

The hex color #3FFF00 is a vivid green.

In the RGB color model it is made of 24.7% red, 100% green and 0% blue (63, 255, 0).

Its hue angle is 105°, with 100% saturation and 50% lightness. For print, the CMYK equivalent is 75% cyan, 0% magenta, 100% yellow and 0% black.

The closest named color is Signal Green (#33FF00), a difference of 0.4 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 15.52:1).

#3FFF00 color codes

HEX	`#3FFF00`
RGB	`rgb(63, 255, 0)`
RGB percent	`rgb(24.7%, 100%, 0%)`
HSL	`hsl(105, 100%, 50%)`
HSV / HSB	`hsv(105, 100%, 100%)`
CMYK	`cmyk(75%, 0%, 100%, 0%)`
CIE LAB	`lab(88.24, -81.6, 83.8)`
CIE LCH	`lch(88.24, 116.97, 134.24)`
CIE XYZ	`xyz(37.808, 72.572, 12.015)`
Decimal	`4194048`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #3FFF00, 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 #3FFF00	Ratio	AA	AAA	AA large
Sample text	15.52:1	Pass	Pass	Pass
Sample text	1.35:1	Fail	Fail	Fail

#3FFF00 as text on	Ratio	AA	AAA	AA large
Sample text	1.35:1	Fail	Fail	Fail
Sample text	15.52:1	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 #3FFF00 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3fff00; }
.text { color: #3fff00; }
.border { border: 2px solid #3fff00; }
.transparent { background-color: rgb(63 255 0 / 50%); }
.gradient { background: linear-gradient(to right, #3fff00, #00ff41); }

Background

Text color

Border

Similar colors

Questions

What color is #3FFF00?: #3FFF00 is a vivid green, closest to the named color Signal Green. It belongs to the green family of colors.
What is the RGB value of #3FFF00?: The RGB value is 63, 255, 0: 63 red, 255 green and 0 blue on a 0 to 255 scale.
What is the complementary color of #3FFF00?: The complementary color is #C000FF, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3FFF00?: Black text. Black text has a contrast ratio of 15.52:1 and white text 1.35:1. WCAG asks for at least 4.5:1 for normal text.