Palettes / Colors / #EFF84F

#EFF84F — Vivid Yellow

#EFF84F is a yellow color we call Vivid Yellow, closest to the named color Khaki (#F0E68C). It belongs to the yellow family.

#EFF84F 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 #574FF8; it also sits naturally between #F8AC4F and #9BF84F. 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 97% · Blue 31%

Cyan 4% · Magenta 0% · Yellow 68% · Key 3%

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

Previews

CSS code for #EFF84F

.text { color: #EFF84F; }
.background { background-color: #EFF84F; }
.border { border: 3px solid #EFF84F; }
.text-rgb { color: rgb(239, 248, 79); }
.text-hsl { color: hsl(63, 92%, 64%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFF84F; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 248, 79, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFF84F; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 248, 79, 0.8); }

HTML: <p style="color:#EFF84F">Text here</p> · <div style="background-color:#EFF84F">Div content here</div>

Shades of #EFF84F

Tints of #EFF84F

Tones of #EFF84F

Color harmonies

Complementary — #574FF8:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #EFF84F: #000000.

How #EFF84F 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 #EFF84F 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

← #EFF84E  ·  #EFF850 →

Frequently asked questions

What color is #EFF84F?

#EFF84F is Vivid Yellow, a yellow color (RGB 239, 248, 79). Its closest standard named color is Khaki.

What is the RGB and HSL of #EFF84F?

#EFF84F is RGB 239, 248, 79 — HSL 63°, 92%, 64% — CMYK 4%, 0%, 68%, 3%.

What colors go with #EFF84F?

Its complement is #574FF8; analogous partners are #F8AC4F and #9BF84F. It also appears in 6+ palettes in our collection.

Can I use #EFF84F for text?

Black text on #EFF84F has a contrast ratio of 18.21:1 (passes WCAG AA); white text gives 1.15:1.