Palettes / Colors / #EFCF34
#EFCF34 — Vivid Yellow
#EFCF34 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 #EFCF34 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.
#EFCF34 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.
Color values
| HEX | #EFCF34 |
|---|---|
| RGB | 239, 207, 52 |
| HSL | 50°, 85%, 57% |
| HSV | 50°, 78%, 94% |
| CMYK | 0%, 13%, 78%, 6% |
| XYZ | 58.53, 63.22, 12.37 |
| Yxy | 63.22, 0.4364, 0.4714 |
| CIE-Lab | 83.56, -3.75, 74.80 |
| Hunter Lab | 79.51, -3.57, 43.73 |
RGB & CMYK percentages
Red 94% · Green 81% · Blue 20%
Cyan 0% · Magenta 13% · Yellow 78% · Key 6%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
CSS code for #EFCF34
.text { color: #EFCF34; }
.background { background-color: #EFCF34; }
.border { border: 3px solid #EFCF34; }
.text-rgb { color: rgb(239, 207, 52); }
.text-hsl { color: hsl(50, 85%, 57%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFCF34; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 207, 52, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFCF34; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 207, 52, 0.8); }
HTML: <p style="color:#EFCF34">Text here</p> · <div style="background-color:#EFCF34">Div content here</div>
Shades of #EFCF34
Tints of #EFCF34
Tones of #EFCF34
Color harmonies
Complementary — #3453EF:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 1.54:1 Fails |
|---|---|
| Against black text | 13.64:1 AAA |
Best text color on #EFCF34: #000000.
Semi-transparent (opacity) text on #EFCF34
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:
Smaller body text shows the effect best.
Blended color: · Contrast against #EFCF34: ·
How #EFCF34 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 #EFCF34 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
Frequently asked questions
What color is #EFCF34?
#EFCF34 is Vivid Yellow, a yellow color (RGB 239, 207, 52). Its closest standard named color is GoldenRod.
What is the RGB and HSL of #EFCF34?
#EFCF34 is RGB 239, 207, 52 — HSL 50°, 85%, 57% — CMYK 0%, 13%, 78%, 6%.
What colors go with #EFCF34?
Its complement is #3453EF; analogous partners are #EF7234 and #B0EF34. It also appears in 6+ palettes in our collection.
Can I use #EFCF34 for text?
Black text on #EFCF34 has a contrast ratio of 13.64:1 (passes WCAG AA); white text gives 1.54:1.