Palettes / Colors / #EFFD54

#EFFD54 — Light Vivid Yellow

#EFFD54 is a yellow color we call Light Vivid Yellow, closest to the named color Khaki (#F0E68C). It belongs to the yellow family.

Color name

Closest CSS keyword: khaki (#F0E68C) — not an exact match. CSS khaki gives you #F0E68C, a different color; use #EFFD54 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.

#EFFD54 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 #6153FD; it also sits naturally between #FDB653 and #9AFD53. 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 99% · Blue 33%

Cyan 6% · Magenta 0% · Yellow 67% · Key 1%

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

Previews

CSS code for #EFFD54

.text { color: #EFFD54; }
.background { background-color: #EFFD54; }
.border { border: 3px solid #EFFD54; }
.text-rgb { color: rgb(239, 253, 84); }
.text-hsl { color: hsl(65, 98%, 66%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFFD54; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 253, 84, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFFD54; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 253, 84, 0.8); }

HTML: <p style="color:#EFFD54">Text here</p> · <div style="background-color:#EFFD54">Div content here</div>

Shades of #EFFD54

Tints of #EFFD54

Tones of #EFFD54

Color harmonies

Complementary — #6153FD:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #EFFD54: #000000.

Semi-transparent (opacity) text on #EFFD54

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 #EFFD54 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 #EFFD54 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

← #EFFD53  ·  #EFFD55 →

Frequently asked questions

What color is #EFFD54?

#EFFD54 is Light Vivid Yellow, a yellow color (RGB 239, 253, 84). Its closest standard named color is Khaki.

What is the RGB and HSL of #EFFD54?

#EFFD54 is RGB 239, 253, 84 — HSL 65°, 98%, 66% — CMYK 6%, 0%, 67%, 1%.

What colors go with #EFFD54?

Its complement is #6153FD; analogous partners are #FDB653 and #9AFD53. It also appears in 6+ palettes in our collection.

Can I use #EFFD54 for text?

Black text on #EFFD54 has a contrast ratio of 18.85:1 (passes WCAG AA); white text gives 1.11:1.