Palettes / Colors / #A3EF4E

#A3EF4E — Vivid Green

#A3EF4E is a green color we call Vivid Green, closest to the named color GreenYellow (#ADFF2F). It belongs to the green family.

Color name

Closest CSS keyword: greenyellow (#ADFF2F) — not an exact match. CSS greenyellow gives you #ADFF2F, a different color; use #A3EF4E when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#A3EF4E is a warm-leaning green color associated with growth, calm and balance. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #994EEF; it also sits naturally between #EFE94E and #53EF4E. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 64% · Green 94% · Blue 31%

Cyan 32% · Magenta 0% · Yellow 67% · Key 6%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #A3EF4E

.text { color: #A3EF4E; }
.background { background-color: #A3EF4E; }
.border { border: 3px solid #A3EF4E; }
.text-rgb { color: rgb(163, 239, 78); }
.text-hsl { color: hsl(88, 83%, 62%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #A3EF4E; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(163, 239, 78, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #A3EF4E; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(163, 239, 78, 0.8); }

HTML: <p style="color:#A3EF4E">Text here</p> · <div style="background-color:#A3EF4E">Div content here</div>

Shades of #A3EF4E

Tints of #A3EF4E

Tones of #A3EF4E

Color harmonies

Complementary — #994EEF:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #A3EF4E: #000000.

Semi-transparent (opacity) text on #A3EF4E

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #A3EF4E looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #A3EF4E rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #A3EF4D  ·  #A3EF4F →

Frequently asked questions

What color is #A3EF4E?

#A3EF4E is Vivid Green, a green color (RGB 163, 239, 78). Its closest standard named color is GreenYellow.

What is the RGB and HSL of #A3EF4E?

#A3EF4E is RGB 163, 239, 78 — HSL 88°, 83%, 62% — CMYK 32%, 0%, 67%, 6%.

What colors go with #A3EF4E?

Its complement is #994EEF; analogous partners are #EFE94E and #53EF4E. It also appears in 6+ palettes in our collection.

Can I use #A3EF4E for text?

Black text on #A3EF4E has a contrast ratio of 15.01:1 (passes WCAG AA); white text gives 1.40:1.