Palettes / Colors / #EFFE20
#EFFE20 — Vivid Yellow
#EFFE20 is a yellow color we call Vivid Yellow, closest to the named color Yellow (#FFFF00). It belongs to the yellow family.
Color name
Closest CSS keyword: yellow (#FFFF00) — not an exact match. CSS yellow gives you #FFFF00, a different color; use #EFFE20 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.
#EFFE20 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 #2F20FE; it also sits naturally between #FE9E20 and #80FE20. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #EFFE20 |
|---|---|
| RGB | 239, 254, 32 |
| HSL | 64°, 99%, 56% |
| HSV | 64°, 87%, 100% |
| CMYK | 6%, 0%, 87%, 0% |
| XYZ | 71.30, 89.34, 14.85 |
| Yxy | 89.34, 0.4063, 0.5091 |
| CIE-Lab | 95.72, -27.25, 89.67 |
| Hunter Lab | 94.52, -26.12, 53.69 |
RGB & CMYK percentages
Red 94% · Green 100% · Blue 13%
Cyan 6% · Magenta 0% · Yellow 87% · Key 0%
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 #EFFE20
.text { color: #EFFE20; }
.background { background-color: #EFFE20; }
.border { border: 3px solid #EFFE20; }
.text-rgb { color: rgb(239, 254, 32); }
.text-hsl { color: hsl(64, 99%, 56%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFFE20; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 254, 32, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFFE20; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 254, 32, 0.8); }
HTML: <p style="color:#EFFE20">Text here</p> · <div style="background-color:#EFFE20">Div content here</div>
Shades of #EFFE20
Tints of #EFFE20
Tones of #EFFE20
Color harmonies
Complementary — #2F20FE:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 1.11:1 Fails |
|---|---|
| Against black text | 18.87:1 AAA |
Best text color on #EFFE20: #000000.
Semi-transparent (opacity) text on #EFFE20
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 #EFFE20: ·
How #EFFE20 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 #EFFE20 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 #EFFE20?
#EFFE20 is Vivid Yellow, a yellow color (RGB 239, 254, 32). Its closest standard named color is Yellow.
What is the RGB and HSL of #EFFE20?
#EFFE20 is RGB 239, 254, 32 — HSL 64°, 99%, 56% — CMYK 6%, 0%, 87%, 0%.
What colors go with #EFFE20?
Its complement is #2F20FE; analogous partners are #FE9E20 and #80FE20. It also appears in 6+ palettes in our collection.
Can I use #EFFE20 for text?
Black text on #EFFE20 has a contrast ratio of 18.87:1 (passes WCAG AA); white text gives 1.11:1.