Palettes / Colors / #EFFA4C

#EFFA4C — Vivid Yellow

#EFFA4C is a yellow color we call Vivid Yellow, closest to the named color Khaki (#F0E68C). It belongs to the yellow family.

#EFFA4C 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 #584CFA; it also sits naturally between #FAAF4C and #98FA4C. 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 94% · Green 98% · Blue 30%

Cyan 4% · Magenta 0% · Yellow 70% · Key 2%

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

Previews

CSS code for #EFFA4C

.text { color: #EFFA4C; }
.background { background-color: #EFFA4C; }
.border { border: 3px solid #EFFA4C; }
.text-rgb { color: rgb(239, 250, 76); }
.text-hsl { color: hsl(64, 95%, 64%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFFA4C; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 250, 76, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFFA4C; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 250, 76, 0.8); }

HTML: <p style="color:#EFFA4C">Text here</p> · <div style="background-color:#EFFA4C">Div content here</div>

Shades of #EFFA4C

Tints of #EFFA4C

Tones of #EFFA4C

Color harmonies

Complementary — #584CFA:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #EFFA4C: #000000.

How #EFFA4C 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 #EFFA4C 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

← #EFFA4B  ·  #EFFA4D →

Frequently asked questions

What color is #EFFA4C?

#EFFA4C is Vivid Yellow, a yellow color (RGB 239, 250, 76). Its closest standard named color is Khaki.

What is the RGB and HSL of #EFFA4C?

#EFFA4C is RGB 239, 250, 76 — HSL 64°, 95%, 64% — CMYK 4%, 0%, 70%, 2%.

What colors go with #EFFA4C?

Its complement is #584CFA; analogous partners are #FAAF4C and #98FA4C. It also appears in 6+ palettes in our collection.

Can I use #EFFA4C for text?

Black text on #EFFA4C has a contrast ratio of 18.45:1 (passes WCAG AA); white text gives 1.14:1.