Palettes / Colors / #B3C021

#B3C021 — Yellow

#B3C021 is a yellow color we call Yellow, closest to the named color YellowGreen (#9ACD32). It belongs to the yellow family.

Color name

Closest CSS keyword: yellowgreen (#9ACD32) — not an exact match. CSS yellowgreen gives you #9ACD32, a different color; use #B3C021 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.

#B3C021 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 #2E21C0; it also sits naturally between #C07D21 and #63C021. 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 70% · Green 75% · Blue 13%

Cyan 7% · Magenta 0% · Yellow 83% · Key 25%

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

Previews

CSS code for #B3C021

.text { color: #B3C021; }
.background { background-color: #B3C021; }
.border { border: 3px solid #B3C021; }
.text-rgb { color: rgb(179, 192, 33); }
.text-hsl { color: hsl(65, 71%, 44%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #B3C021; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(179, 192, 33, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #B3C021; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(179, 192, 33, 0.8); }

HTML: <p style="color:#B3C021">Text here</p> · <div style="background-color:#B3C021">Div content here</div>

Shades of #B3C021

Tints of #B3C021

Tones of #B3C021

Color harmonies

Complementary — #2E21C0:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #B3C021: #000000.

Semi-transparent (opacity) text on #B3C021

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 #B3C021 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 #B3C021 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

← #B3C020  ·  #B3C022 →

Frequently asked questions

What color is #B3C021?

#B3C021 is Yellow, a yellow color (RGB 179, 192, 33). Its closest standard named color is YellowGreen.

What is the RGB and HSL of #B3C021?

#B3C021 is RGB 179, 192, 33 — HSL 65°, 71%, 44% — CMYK 7%, 0%, 83%, 25%.

What colors go with #B3C021?

Its complement is #2E21C0; analogous partners are #C07D21 and #63C021. It also appears in 6+ palettes in our collection.

Can I use #B3C021 for text?

Black text on #B3C021 has a contrast ratio of 10.48:1 (passes WCAG AA); white text gives 2.00:1.