Palettes / Colors / #EFBB01
#EFBB01 — Vivid Yellow
#EFBB01 is a yellow color we call Vivid Yellow, closest to the named color Orange (#FFA500). It belongs to the yellow family.
Color name
Closest CSS keyword: orange (#FFA500) — not an exact match. CSS orange gives you #FFA500, a different color; use #EFBB01 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.
#EFBB01 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 #0135EF; it also sits naturally between #EF4401 and #ABEF01. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #EFBB01 |
|---|---|
| RGB | 239, 187, 1 |
| HSL | 47°, 99%, 47% |
| HSV | 47°, 100%, 94% |
| CMYK | 0%, 22%, 100%, 6% |
| XYZ | 53.37, 53.89, 7.62 |
| Yxy | 53.89, 0.4646, 0.4691 |
| CIE-Lab | 78.40, 5.61, 80.35 |
| Hunter Lab | 73.41, 5.31, 42.83 |
RGB & CMYK percentages
Red 94% · Green 73% · Blue 0%
Cyan 0% · Magenta 22% · Yellow 100% · 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 #EFBB01
.text { color: #EFBB01; }
.background { background-color: #EFBB01; }
.border { border: 3px solid #EFBB01; }
.text-rgb { color: rgb(239, 187, 1); }
.text-hsl { color: hsl(47, 99%, 47%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EFBB01; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 187, 1, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EFBB01; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 187, 1, 0.8); }
HTML: <p style="color:#EFBB01">Text here</p> · <div style="background-color:#EFBB01">Div content here</div>
Shades of #EFBB01
Tints of #EFBB01
Tones of #EFBB01
Color harmonies
Complementary — #0135EF:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 1.78:1 Fails |
|---|---|
| Against black text | 11.78:1 AAA |
Best text color on #EFBB01: #000000.
Semi-transparent (opacity) text on #EFBB01
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 #EFBB01: ·
How #EFBB01 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 #EFBB01 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 #EFBB01?
#EFBB01 is Vivid Yellow, a yellow color (RGB 239, 187, 1). Its closest standard named color is Orange.
What is the RGB and HSL of #EFBB01?
#EFBB01 is RGB 239, 187, 1 — HSL 47°, 99%, 47% — CMYK 0%, 22%, 100%, 6%.
What colors go with #EFBB01?
Its complement is #0135EF; analogous partners are #EF4401 and #ABEF01. It also appears in 6+ palettes in our collection.
Can I use #EFBB01 for text?
Black text on #EFBB01 has a contrast ratio of 11.78:1 (passes WCAG AA); white text gives 1.78:1.