Palettes / Colors / #00FF40

#00FF40 — Vivid Green

#00FF40 is a green color we call Vivid Green, closest to the named color SpringGreen (#00FF7F). It belongs to the green family.

Color name

Closest CSS keyword: springgreen (#00FF7F) — not an exact match. CSS springgreen gives you #00FF7F, a different color; use #00FF40 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.

#00FF40 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 #FF00BF; it also sits naturally between #40FF00 and #00FFBF. 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 0% · Green 100% · Blue 25%

Cyan 100% · Magenta 0% · Yellow 75% · Key 0%

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

Previews

CSS code for #00FF40

.text { color: #00FF40; }
.background { background-color: #00FF40; }
.border { border: 3px solid #00FF40; }
.text-rgb { color: rgb(0, 255, 64); }
.text-hsl { color: hsl(135, 100%, 50%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #00FF40; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(0, 255, 64, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #00FF40; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(0, 255, 64, 0.8); }

HTML: <p style="color:#00FF40">Text here</p> · <div style="background-color:#00FF40">Div content here</div>

Shades of #00FF40

Tints of #00FF40

Tones of #00FF40

Color harmonies

Complementary — #FF00BF:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #00FF40: #000000.

Semi-transparent (opacity) text on #00FF40

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 #00FF40 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 #00FF40 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

← #00FF3F  ·  #00FF41 →

Frequently asked questions

What color is #00FF40?

#00FF40 is Vivid Green, a green color (RGB 0, 255, 64). Its closest standard named color is SpringGreen.

What is the RGB and HSL of #00FF40?

#00FF40 is RGB 0, 255, 64 — HSL 135°, 100%, 50% — CMYK 100%, 0%, 75%, 0%.

What colors go with #00FF40?

Its complement is #FF00BF; analogous partners are #40FF00 and #00FFBF. It also appears in 6+ palettes in our collection.

Can I use #00FF40 for text?

Black text on #00FF40 has a contrast ratio of 15.38:1 (passes WCAG AA); white text gives 1.37:1.