Palettes / Colors / #CFEC00

#CFEC00 — Vivid Yellow

#CFEC00 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 #CFEC00 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.

#CFEC00 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 #1B00EB; it also sits naturally between #EB9100 and #5AEB00. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 81% · Green 93% · Blue 0%

Cyan 12% · Magenta 0% · Yellow 100% · Key 7%

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

Previews

CSS code for #CFEC00

.text { color: #CFEC00; }
.background { background-color: #CFEC00; }
.border { border: 3px solid #CFEC00; }
.text-rgb { color: rgb(207, 236, 0); }
.text-hsl { color: hsl(67, 100%, 46%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #CFEC00; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(207, 236, 0, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #CFEC00; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(207, 236, 0, 0.8); }

HTML: <p style="color:#CFEC00">Text here</p> · <div style="background-color:#CFEC00">Div content here</div>

Shades of #CFEC00

Tints of #CFEC00

Tones of #CFEC00

Color harmonies

Complementary — #1B00EB:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #CFEC00: #000000.

Semi-transparent (opacity) text on #CFEC00

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 #CFEC00 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 #CFEC00 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

← #CFEBFF  ·  #CFEC01 →

Frequently asked questions

What color is #CFEC00?

#CFEC00 is Vivid Yellow, a yellow color (RGB 207, 236, 0). Its closest standard named color is Yellow.

What is the RGB and HSL of #CFEC00?

#CFEC00 is RGB 207, 236, 0 — HSL 67°, 100%, 46% — CMYK 12%, 0%, 100%, 7%.

What colors go with #CFEC00?

Its complement is #1B00EB; analogous partners are #EB9100 and #5AEB00. It also appears in 6+ palettes in our collection.

Can I use #CFEC00 for text?

Black text on #CFEC00 has a contrast ratio of 15.65:1 (passes WCAG AA); white text gives 1.34:1.