Palettes / Colors / #EFFE64

#EFFE64 — Light Vivid Yellow

#EFFE64 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 #EFFE64 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.

#EFFE64 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 #7162FE; it also sits naturally between #FEC062 and #A0FE62. 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 100% · Blue 39%

Cyan 6% · Magenta 0% · Yellow 61% · Key 0%

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

Previews

CSS code for #EFFE64

.text { color: #EFFE64; }
.background { background-color: #EFFE64; }
.border { border: 3px solid #EFFE64; }
.text-rgb { color: rgb(239, 254, 100); }
.text-hsl { color: hsl(66, 99%, 69%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFFE64; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 254, 100, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFFE64; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 254, 100, 0.8); }

HTML: <p style="color:#EFFE64">Text here</p> · <div style="background-color:#EFFE64">Div content here</div>

Shades of #EFFE64

Tints of #EFFE64

Tones of #EFFE64

Color harmonies

Complementary — #7162FE:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #EFFE64: #000000.

Semi-transparent (opacity) text on #EFFE64

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 #EFFE64 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 #EFFE64 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

← #EFFE63  ·  #EFFE65 →

Frequently asked questions

What color is #EFFE64?

#EFFE64 is Light Vivid Yellow, a yellow color (RGB 239, 254, 100). Its closest standard named color is Khaki.

What is the RGB and HSL of #EFFE64?

#EFFE64 is RGB 239, 254, 100 — HSL 66°, 99%, 69% — CMYK 6%, 0%, 61%, 0%.

What colors go with #EFFE64?

Its complement is #7162FE; analogous partners are #FEC062 and #A0FE62. It also appears in 6+ palettes in our collection.

Can I use #EFFE64 for text?

Black text on #EFFE64 has a contrast ratio of 19.03:1 (passes WCAG AA); white text gives 1.10:1.