Palettes / Colors / #21CA4E

#21CA4E — Green

#21CA4E is a green color we call Green, closest to the named color SeaGreen (#2E8B57). It belongs to the green family.

Color name

Closest CSS keyword: seagreen (#2E8B57) — not an exact match. CSS seagreen gives you #2E8B57, a different color; use #21CA4E 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.

#21CA4E is a warm-leaning green color associated with growth, calm and balance. 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 #CA219D; it also sits naturally between #48CA21 and #21CAA2. 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 13% · Green 79% · Blue 31%

Cyan 84% · Magenta 0% · Yellow 61% · Key 21%

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

Previews

CSS code for #21CA4E

.text { color: #21CA4E; }
.background { background-color: #21CA4E; }
.border { border: 3px solid #21CA4E; }
.text-rgb { color: rgb(33, 202, 78); }
.text-hsl { color: hsl(136, 72%, 46%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #21CA4E; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(33, 202, 78, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #21CA4E; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(33, 202, 78, 0.8); }

HTML: <p style="color:#21CA4E">Text here</p> · <div style="background-color:#21CA4E">Div content here</div>

Shades of #21CA4E

Tints of #21CA4E

Tones of #21CA4E

Color harmonies

Complementary — #CA219D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #21CA4E: #000000.

Semi-transparent (opacity) text on #21CA4E

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 #21CA4E 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 #21CA4E 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

← #21CA4D  ·  #21CA4F →

Frequently asked questions

What color is #21CA4E?

#21CA4E is Green, a green color (RGB 33, 202, 78). Its closest standard named color is SeaGreen.

What is the RGB and HSL of #21CA4E?

#21CA4E is RGB 33, 202, 78 — HSL 136°, 72%, 46% — CMYK 84%, 0%, 61%, 21%.

What colors go with #21CA4E?

Its complement is #CA219D; analogous partners are #48CA21 and #21CAA2. It also appears in 6+ palettes in our collection.

Can I use #21CA4E for text?

Black text on #21CA4E has a contrast ratio of 9.62:1 (passes WCAG AA); white text gives 2.18:1.