Palettes / Colors / #51EC31
#51EC31 — Vivid Green
#51EC31 is a green color we call Vivid Green, closest to the named color LawnGreen (#7CFC00). It belongs to the green family.
Color name
Closest CSS keyword: lawngreen (#7CFC00) — not an exact match. CSS lawngreen gives you #7CFC00, a different color; use #51EC31 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.
#51EC31 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 #CD32EC; it also sits naturally between #AEEC32 and #32EC70. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #51EC31 |
|---|---|
| RGB | 81, 236, 49 |
| HSL | 110°, 83%, 56% |
| HSV | 110°, 79%, 93% |
| CMYK | 66%, 0%, 79%, 7% |
| XYZ | 33.94, 61.96, 13.08 |
| Yxy | 61.96, 0.3115, 0.5686 |
| CIE-Lab | 82.89, -71.53, 71.83 |
| Hunter Lab | 78.72, -57.48, 42.54 |
RGB & CMYK percentages
Red 32% · Green 93% · Blue 19%
Cyan 66% · Magenta 0% · Yellow 79% · Key 7%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #51EC31
.text { color: #51EC31; }
.background { background-color: #51EC31; }
.border { border: 3px solid #51EC31; }
.text-rgb { color: rgb(81, 236, 49); }
.text-hsl { color: hsl(110, 83%, 56%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #51EC31; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 236, 49, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #51EC31; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 236, 49, 0.8); }
HTML: <p style="color:#51EC31">Text here</p> · <div style="background-color:#51EC31">Div content here</div>
Shades of #51EC31
Tints of #51EC31
Tones of #51EC31
Color harmonies
Complementary — #CD32EC:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 1.57:1 Fails |
|---|---|
| Against black text | 13.39:1 AAA |
Best text color on #51EC31: #000000.
Semi-transparent (opacity) text on #51EC31
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:
Smaller body text shows the effect best.
Blended color: · Contrast against #51EC31: ·
How #51EC31 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 #51EC31 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
Frequently asked questions
What color is #51EC31?
#51EC31 is Vivid Green, a green color (RGB 81, 236, 49). Its closest standard named color is LawnGreen.
What is the RGB and HSL of #51EC31?
#51EC31 is RGB 81, 236, 49 — HSL 110°, 83%, 56% — CMYK 66%, 0%, 79%, 7%.
What colors go with #51EC31?
Its complement is #CD32EC; analogous partners are #AEEC32 and #32EC70. It also appears in 6+ palettes in our collection.
Can I use #51EC31 for text?
Black text on #51EC31 has a contrast ratio of 13.39:1 (passes WCAG AA); white text gives 1.57:1.