Palettes / Colors / #EFCF33

#EFCF33 — Vivid Yellow

#EFCF33 is a yellow color we call Vivid Yellow, closest to the named color GoldenRod (#DAA520). It belongs to the yellow family.

Color name

Closest CSS keyword: goldenrod (#DAA520) — not an exact match. CSS goldenrod gives you #DAA520, a different color; use #EFCF33 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.

#EFCF33 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 #3453EF; it also sits naturally between #EF7234 and #B0EF34. 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 81% · Blue 20%

Cyan 0% · Magenta 13% · Yellow 79% · Key 6%

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

Previews

CSS code for #EFCF33

.text { color: #EFCF33; }
.background { background-color: #EFCF33; }
.border { border: 3px solid #EFCF33; }
.text-rgb { color: rgb(239, 207, 51); }
.text-hsl { color: hsl(50, 85%, 57%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFCF33; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 207, 51, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFCF33; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 207, 51, 0.8); }

HTML: <p style="color:#EFCF33">Text here</p> · <div style="background-color:#EFCF33">Div content here</div>

Shades of #EFCF33

Tints of #EFCF33

Tones of #EFCF33

Color harmonies

Complementary — #3453EF:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #EFCF33: #000000.

Semi-transparent (opacity) text on #EFCF33

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 #EFCF33 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 #EFCF33 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

← #EFCF32  ·  #EFCF34 →

Frequently asked questions

What color is #EFCF33?

#EFCF33 is Vivid Yellow, a yellow color (RGB 239, 207, 51). Its closest standard named color is GoldenRod.

What is the RGB and HSL of #EFCF33?

#EFCF33 is RGB 239, 207, 51 — HSL 50°, 85%, 57% — CMYK 0%, 13%, 79%, 6%.

What colors go with #EFCF33?

Its complement is #3453EF; analogous partners are #EF7234 and #B0EF34. It also appears in 6+ palettes in our collection.

Can I use #EFCF33 for text?

Black text on #EFCF33 has a contrast ratio of 13.64:1 (passes WCAG AA); white text gives 1.54:1.