Palettes / Colors / #ECEF4E

#ECEF4E — Vivid Yellow

#ECEF4E is a yellow color we call 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 #ECEF4E 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.

#ECEF4E 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 #504EEF; it also sits naturally between #EFA14E and #9BEF4E. 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 93% · Green 94% · Blue 31%

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

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

Previews

CSS code for #ECEF4E

.text { color: #ECEF4E; }
.background { background-color: #ECEF4E; }
.border { border: 3px solid #ECEF4E; }
.text-rgb { color: rgb(236, 239, 78); }
.text-hsl { color: hsl(61, 83%, 62%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #ECEF4E; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(236, 239, 78, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #ECEF4E; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(236, 239, 78, 0.8); }

HTML: <p style="color:#ECEF4E">Text here</p> · <div style="background-color:#ECEF4E">Div content here</div>

Shades of #ECEF4E

Tints of #ECEF4E

Tones of #ECEF4E

Color harmonies

Complementary — #504EEF:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #ECEF4E: #000000.

Semi-transparent (opacity) text on #ECEF4E

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 #ECEF4E 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 #ECEF4E 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

← #ECEF4D  ·  #ECEF4F →

Frequently asked questions

What color is #ECEF4E?

#ECEF4E is Vivid Yellow, a yellow color (RGB 236, 239, 78). Its closest standard named color is Khaki.

What is the RGB and HSL of #ECEF4E?

#ECEF4E is RGB 236, 239, 78 — HSL 61°, 83%, 62% — CMYK 1%, 0%, 67%, 6%.

What colors go with #ECEF4E?

Its complement is #504EEF; analogous partners are #EFA14E and #9BEF4E. It also appears in 6+ palettes in our collection.

Can I use #ECEF4E for text?

Black text on #ECEF4E has a contrast ratio of 17.02:1 (passes WCAG AA); white text gives 1.23:1.