Palettes / Colors / #21BCBB

#21BCBB — Teal

#21BCBB is a teal color we call Teal, closest to the named color LightSeaGreen (#20B2AA). It belongs to the teal family.

Color name

Closest CSS keyword: lightseagreen (#20B2AA) — not an exact match. CSS lightseagreen gives you #20B2AA, a different color; use #21BCBB 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.

#21BCBB is a cool teal color associated with freshness, clarity 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 #BA2121; it also sits naturally between #21BA6E and #216EBA. 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 74% · Blue 73%

Cyan 82% · Magenta 0% · Yellow 1% · Key 26%

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

Previews

CSS code for #21BCBB

.text { color: #21BCBB; }
.background { background-color: #21BCBB; }
.border { border: 3px solid #21BCBB; }
.text-rgb { color: rgb(33, 188, 187); }
.text-hsl { color: hsl(180, 70%, 43%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #21BCBB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(33, 188, 187, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #21BCBB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(33, 188, 187, 0.8); }

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

Shades of #21BCBB

Tints of #21BCBB

Tones of #21BCBB

Color harmonies

Complementary — #BA2121:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #21BCBB: #000000.

Semi-transparent (opacity) text on #21BCBB

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 #21BCBB 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 #21BCBB 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

← #21BCBA  ·  #21BCBC →

Frequently asked questions

What color is #21BCBB?

#21BCBB is Teal, a teal color (RGB 33, 188, 187). Its closest standard named color is LightSeaGreen.

What is the RGB and HSL of #21BCBB?

#21BCBB is RGB 33, 188, 187 — HSL 180°, 70%, 43% — CMYK 82%, 0%, 1%, 26%.

What colors go with #21BCBB?

Its complement is #BA2121; analogous partners are #21BA6E and #216EBA. It also appears in 6+ palettes in our collection.

Can I use #21BCBB for text?

Black text on #21BCBB has a contrast ratio of 8.98:1 (passes WCAG AA); white text gives 2.34:1.