Palettes / Colors / #EFDD66

#EFDD66 — Light Vivid Yellow

#EFDD66 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 #EFDD66 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.

#EFDD66 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 #6779EF; it also sits naturally between #EF9967 and #BDEF67. 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 87% · Blue 40%

Cyan 0% · Magenta 8% · Yellow 57% · Key 6%

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

Previews

CSS code for #EFDD66

.text { color: #EFDD66; }
.background { background-color: #EFDD66; }
.border { border: 3px solid #EFDD66; }
.text-rgb { color: rgb(239, 221, 102); }
.text-hsl { color: hsl(52, 81%, 67%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFDD66; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 221, 102, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFDD66; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 221, 102, 0.8); }

HTML: <p style="color:#EFDD66">Text here</p> · <div style="background-color:#EFDD66">Div content here</div>

Shades of #EFDD66

Tints of #EFDD66

Tones of #EFDD66

Color harmonies

Complementary — #6779EF:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #EFDD66: #000000.

Semi-transparent (opacity) text on #EFDD66

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 #EFDD66 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 #EFDD66 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

← #EFDD65  ·  #EFDD67 →

Frequently asked questions

What color is #EFDD66?

#EFDD66 is Light Vivid Yellow, a yellow color (RGB 239, 221, 102). Its closest standard named color is Khaki.

What is the RGB and HSL of #EFDD66?

#EFDD66 is RGB 239, 221, 102 — HSL 52°, 81%, 67% — CMYK 0%, 8%, 57%, 6%.

What colors go with #EFDD66?

Its complement is #6779EF; analogous partners are #EF9967 and #BDEF67. It also appears in 6+ palettes in our collection.

Can I use #EFDD66 for text?

Black text on #EFDD66 has a contrast ratio of 15.20:1 (passes WCAG AA); white text gives 1.38:1.