What color is #21DED1?

#21DED1 is a medium, vivid teal. In RGB it is rgb(33, 222, 209), and in HSL hsl(176, 74%, 50%).

Is #21DED1 accessible as text?

On white, #21DED1 has a contrast ratio of 1.69:1 (fails WCAG AA for body text); on black it is 12.43:1 (passes). For text placed on #21DED1, use black for the best readability.

What is the closest Tailwind color to #21DED1?

The nearest Tailwind CSS token is teal-400 (#00D5BE).

What colors go well with #21DED1?

#21DED1 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DE212E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #21DED1 below.

Is #21DED1 good for buttons?

#21DED1 works well for buttons and highlights, but use black text on #21DED1 — white text only reaches 1.69:1, below the 4.5:1 needed for normal-size labels.

Is #21DED1 the same as CSS turquoise?

No — #21DED1 is not the CSS named color turquoise, but turquoise (#40E0D0) is the closest CSS named color.

#21DED1 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #21DED1

Not just a swatch — here's how #21DED1 works with other colors. Named schemes with #21DED1 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #21DED1 Accent #A7C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Turquoise opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #21DED1 Secondary #AEB4B8 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

Turquoise keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #21DED1 Secondary #CCFBF5 Support #979286 Ink #16140F

Turquoise is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Turquoise carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #21DED1 Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #77FFF7

Turquoise is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Turquoise.

Modern Café Dominant · 5 colors

Dominant #21DED1 Anchor #382B1E Surface #ECE4D0 Accent #829C71 Secondary #3A3833

Turquoise anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Build a working theme in the generator →

Color Lab

How #21DED1 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 20/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 60/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 19/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 23/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 25/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 53/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 25/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 40/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 68/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #21DED1

For UI

For branding

For interior

For fashion

People also use #21DED1 with

Malachite True Blue Crimson Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA

Body text Do not use for body copy on light surfaces. Avoid

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 11.0:1. Use

Subtle surface Use #D8F3F1 for cards and hover fills. Tint 80

Avoid beside #21ACDE — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #21DED1 at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #21DED1;
  --color-base-rgb: 33 222 209;
  --color-base-oklch: oklch(81.3% 0.138 187.2);
  --color-50: #F1FEFD;
  --color-100: #DBFBF8;
  --color-200: #B8F4F0;
  --color-300: #88E7E1;
  --color-400: #5CD6CE;
  --color-500: #39BCB3;
  --color-600: #338F89;
  --color-700: #2A6561;
  --color-800: #1F4240;
  --color-900: #152927;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  turquoise: {
    50: '#F1FEFD',
    100: '#DBFBF8',
    200: '#B8F4F0',
    300: '#88E7E1',
    400: '#5CD6CE',
    500: '#39BCB3',
    600: '#338F89',
    700: '#2A6561',
    800: '#1F4240',
    900: '#152927',
  },
}

$base: #21DED1;
$base-ink: #141310;
$base-50: #F1FEFD;
$base-100: #DBFBF8;
$base-200: #B8F4F0;
$base-300: #88E7E1;
$base-400: #5CD6CE;
$base-500: #39BCB3;
$base-600: #338F89;
$base-700: #2A6561;
$base-800: #1F4240;
$base-900: #152927;
$base-hover: #1BB1A7;
$base-subtle: #C3EEEB;

{
    "color": {
        "base": {
            "value": "#21DED1",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEFD",
                "type": "color"
            },
            "100": {
                "value": "#DBFBF8",
                "type": "color"
            },
            "200": {
                "value": "#B8F4F0",
                "type": "color"
            },
            "300": {
                "value": "#88E7E1",
                "type": "color"
            },
            "400": {
                "value": "#5CD6CE",
                "type": "color"
            },
            "500": {
                "value": "#39BCB3",
                "type": "color"
            },
            "600": {
                "value": "#338F89",
                "type": "color"
            },
            "700": {
                "value": "#2A6561",
                "type": "color"
            },
            "800": {
                "value": "#1F4240",
                "type": "color"
            },
            "900": {
                "value": "#152927",
                "type": "color"
            }
        }
    }
}

Palettes built on #21DED1

Color Lab

Pairs with #21DED1

UI roles & guardrails

In real applications

Scales

Every model

Export