Palettes / Colors / #51EC63

#51EC63 — Vivid Green

#51EC63 is a green color we call Vivid Green, closest to the named color LightGreen (#90EE90). It belongs to the green family.

Color name

Closest CSS keyword: lightgreen (#90EE90) — not an exact match. CSS lightgreen gives you #90EE90, a different color; use #51EC63 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.

#51EC63 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 #EC51DA; it also sits naturally between #8CEC51 and #51ECB0. 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 32% · Green 93% · Blue 39%

Cyan 66% · Magenta 0% · Yellow 58% · Key 7%

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

Previews

CSS code for #51EC63

.text { color: #51EC63; }
.background { background-color: #51EC63; }
.border { border: 3px solid #51EC63; }
.text-rgb { color: rgb(81, 236, 99); }
.text-hsl { color: hsl(127, 80%, 62%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #51EC63; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 236, 99, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #51EC63; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 236, 99, 0.8); }

HTML: <p style="color:#51EC63">Text here</p> · <div style="background-color:#51EC63">Div content here</div>

Shades of #51EC63

Tints of #51EC63

Tones of #51EC63

Color harmonies

Complementary — #EC51DA:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #51EC63: #000000.

Semi-transparent (opacity) text on #51EC63

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 #51EC63 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 #51EC63 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

← #51EC62  ·  #51EC64 →

Frequently asked questions

What color is #51EC63?

#51EC63 is Vivid Green, a green color (RGB 81, 236, 99). Its closest standard named color is LightGreen.

What is the RGB and HSL of #51EC63?

#51EC63 is RGB 81, 236, 99 — HSL 127°, 80%, 62% — CMYK 66%, 0%, 58%, 7%.

What colors go with #51EC63?

Its complement is #EC51DA; analogous partners are #8CEC51 and #51ECB0. It also appears in 6+ palettes in our collection.

Can I use #51EC63 for text?

Black text on #51EC63 has a contrast ratio of 13.53:1 (passes WCAG AA); white text gives 1.55:1.