Palettes / Colors / #CDF00A

#CDF00A — Vivid Yellow

#CDF00A is a yellow color we call Vivid Yellow, closest to the named color GreenYellow (#ADFF2F). It belongs to the yellow family.

Color name

Closest CSS keyword: greenyellow (#ADFF2F) — not an exact match. CSS greenyellow gives you #ADFF2F, a different color; use #CDF00A 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.

#CDF00A is a warm yellow color associated with optimism, attention and cheer. 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 #2C0AF0; it also sits naturally between #F09F0A and #5AF00A. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 80% · Green 94% · Blue 4%

Cyan 15% · Magenta 0% · Yellow 96% · Key 6%

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

Previews

CSS code for #CDF00A

.text { color: #CDF00A; }
.background { background-color: #CDF00A; }
.border { border: 3px solid #CDF00A; }
.text-rgb { color: rgb(205, 240, 10); }
.text-hsl { color: hsl(69, 92%, 49%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #CDF00A; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(205, 240, 10, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #CDF00A; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(205, 240, 10, 0.8); }

HTML: <p style="color:#CDF00A">Text here</p> · <div style="background-color:#CDF00A">Div content here</div>

Shades of #CDF00A

Tints of #CDF00A

Tones of #CDF00A

Color harmonies

Complementary — #2C0AF0:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #CDF00A: #000000.

Semi-transparent (opacity) text on #CDF00A

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 #CDF00A 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 #CDF00A 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

← #CDF009  ·  #CDF00B →

Frequently asked questions

What color is #CDF00A?

#CDF00A is Vivid Yellow, a yellow color (RGB 205, 240, 10). Its closest standard named color is GreenYellow.

What is the RGB and HSL of #CDF00A?

#CDF00A is RGB 205, 240, 10 — HSL 69°, 92%, 49% — CMYK 15%, 0%, 96%, 6%.

What colors go with #CDF00A?

Its complement is #2C0AF0; analogous partners are #F09F0A and #5AF00A. It also appears in 6+ palettes in our collection.

Can I use #CDF00A for text?

Black text on #CDF00A has a contrast ratio of 16.06:1 (passes WCAG AA); white text gives 1.31:1.