What color is #12ECFB?

#12ECFB is a medium, vivid cyan. In RGB it is rgb(18, 236, 251), and in HSL hsl(184, 97%, 53%).

Is #12ECFB accessible as text?

On white, #12ECFB has a contrast ratio of 1.46:1 (fails WCAG AA for body text); on black it is 14.42:1 (passes). For text placed on #12ECFB, use black for the best readability.

What is the closest Tailwind color to #12ECFB?

The nearest Tailwind CSS token is cyan-300 (#53EAFD).

What colors go well with #12ECFB?

#12ECFB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #FB2213. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #12ECFB below.

Is #12ECFB good for buttons?

#12ECFB works well for buttons and highlights, but use black text on #12ECFB — white text only reaches 1.46:1, below the 4.5:1 needed for normal-size labels.

Is #12ECFB the same as CSS aqua?

No — #12ECFB is not the CSS named color aqua, but aqua (#00FFFF) is the closest CSS named color.

#12ECFB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #12ECFB

Not just a swatch — here's how #12ECFB works with other colors. Named schemes with #12ECFB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #12ECFB Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Cyan 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 #12ECFB Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #12ECFB Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #7AFFFF

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #12ECFB Secondary #D3FFFF Support #979286 Ink #16140F

Cyan 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 Cyan carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #12ECFB Anchor #372C1D Surface #EBE5D0 Accent #809D73 Secondary #3A3933

Cyan 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 #12ECFB 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 12/100

Cool

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

Softness 62/100

High

Middle-weight — neither delicate nor heavy.

Depth 14/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 8/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 20/100

Very low

Playful and accessible rather than exclusive.

Brand distinctiveness 56/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 15/100

Very low

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

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 62/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #12ECFB

For UI

For branding

For interior

For fashion

People also use #12ECFB with

Medium Spring Green Neon Blue Vermilion 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 12.8:1. Use

Subtle surface Use #D6F6F8 for cards and hover fills. Tint 80

Avoid beside #139EFB — 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 #12ECFB 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: #12ECFB;
  --color-base-rgb: 18 236 251;
  --color-base-oklch: oklch(86.0% 0.145 203.1);
  --color-50: #F0FDFE;
  --color-100: #D8FBFD;
  --color-200: #B1F7FC;
  --color-300: #79EEF6;
  --color-400: #49DFE9;
  --color-500: #25C4D0;
  --color-600: #25959D;
  --color-700: #20696F;
  --color-800: #194548;
  --color-900: #112A2C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cyan: {
    50: '#F0FDFE',
    100: '#D8FBFD',
    200: '#B1F7FC',
    300: '#79EEF6',
    400: '#49DFE9',
    500: '#25C4D0',
    600: '#25959D',
    700: '#20696F',
    800: '#194548',
    900: '#112A2C',
  },
}

$base: #12ECFB;
$base-ink: #141310;
$base-50: #F0FDFE;
$base-100: #D8FBFD;
$base-200: #B1F7FC;
$base-300: #79EEF6;
$base-400: #49DFE9;
$base-500: #25C4D0;
$base-600: #25959D;
$base-700: #20696F;
$base-800: #194548;
$base-900: #112A2C;
$base-hover: #03C7D5;
$base-subtle: #C1F2F6;

{
    "color": {
        "base": {
            "value": "#12ECFB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FDFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FBFD",
                "type": "color"
            },
            "200": {
                "value": "#B1F7FC",
                "type": "color"
            },
            "300": {
                "value": "#79EEF6",
                "type": "color"
            },
            "400": {
                "value": "#49DFE9",
                "type": "color"
            },
            "500": {
                "value": "#25C4D0",
                "type": "color"
            },
            "600": {
                "value": "#25959D",
                "type": "color"
            },
            "700": {
                "value": "#20696F",
                "type": "color"
            },
            "800": {
                "value": "#194548",
                "type": "color"
            },
            "900": {
                "value": "#112A2C",
                "type": "color"
            }
        }
    }
}

Palettes built on #12ECFB

Color Lab

Pairs with #12ECFB

UI roles & guardrails

In real applications

Scales

Every model

Export