What color is #12AAA5?

#12AAA5 is a dark, vivid cyan. In RGB it is rgb(18, 170, 165), and in HSL hsl(178, 81%, 37%).

Is #12AAA5 accessible as text?

On white, #12AAA5 has a contrast ratio of 2.87:1 (fails WCAG AA for body text); on black it is 7.32:1 (passes). For text placed on #12AAA5, use black for the best readability.

What is the closest Tailwind color to #12AAA5?

The nearest Tailwind CSS token is teal-500 (#00BBA7).

What colors go well with #12AAA5?

#12AAA5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AB1217. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #12AAA5 below.

Is #12AAA5 good for buttons?

#12AAA5 works well for buttons and highlights, but use black text on #12AAA5 — white text only reaches 2.87:1, below the 4.5:1 needed for normal-size labels.

Is #12AAA5 the same as CSS lightseagreen?

No — #12AAA5 is not the CSS named color lightseagreen, but lightseagreen (#20B2AA) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#12AAA5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #12AAA5

Not just a swatch — here's how #12AAA5 works with other colors. Named schemes with #12AAA5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #12AAA5 Accent #A7C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Light Sea Green 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 #12AAA5 Secondary #AEB4B8 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

Light Sea Green 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 #12AAA5 Secondary #A4C9C6 Support #979286 Ink #16140F

Light Sea Green 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 Light Sea Green carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #12AAA5 Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #60CFC9

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

Modern Café Dominant · 5 colors

Dominant #12AAA5 Anchor #382B1E Surface #ECE4D0 Accent #819C71 Secondary #3A3833

Light Sea Green 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 #12AAA5 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 24/100

Cool

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

Softness 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 33/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 21/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 41/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 43/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 70/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 34/100

Low

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #12AAA5

For UI

For branding

For interior

For fashion

People also use #12AAA5 with

Shamrock Sapphire Blue Cherry Red Platinum Dark Slate Gray

UI roles & guardrails

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

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 6.5:1. Use

Subtle surface Use #CCF2F0 for cards and hover fills. Tint 80

Avoid beside #127DAB — 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 #12AAA5 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

A working theme, generated in seconds.

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: #12AAA5;
  --color-base-rgb: 18 170 165;
  --color-base-oklch: oklch(66.8% 0.112 191.0);
  --color-50: #F1FEFE;
  --color-100: #D9FCFB;
  --color-200: #B5F7F5;
  --color-300: #83ECE8;
  --color-400: #56DCD8;
  --color-500: #33C2BD;
  --color-600: #2E9390;
  --color-700: #276866;
  --color-800: #1D4443;
  --color-900: #142A29;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  light-sea-green: {
    50: '#F1FEFE',
    100: '#D9FCFB',
    200: '#B5F7F5',
    300: '#83ECE8',
    400: '#56DCD8',
    500: '#33C2BD',
    600: '#2E9390',
    700: '#276866',
    800: '#1D4443',
    900: '#142A29',
  },
}

$base: #12AAA5;
$base-ink: #141310;
$base-50: #F1FEFE;
$base-100: #D9FCFB;
$base-200: #B5F7F5;
$base-300: #83ECE8;
$base-400: #56DCD8;
$base-500: #33C2BD;
$base-600: #2E9390;
$base-700: #276866;
$base-800: #1D4443;
$base-900: #142A29;
$base-hover: #0E8985;
$base-subtle: #B1ECEA;

{
    "color": {
        "base": {
            "value": "#12AAA5",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEFE",
                "type": "color"
            },
            "100": {
                "value": "#D9FCFB",
                "type": "color"
            },
            "200": {
                "value": "#B5F7F5",
                "type": "color"
            },
            "300": {
                "value": "#83ECE8",
                "type": "color"
            },
            "400": {
                "value": "#56DCD8",
                "type": "color"
            },
            "500": {
                "value": "#33C2BD",
                "type": "color"
            },
            "600": {
                "value": "#2E9390",
                "type": "color"
            },
            "700": {
                "value": "#276866",
                "type": "color"
            },
            "800": {
                "value": "#1D4443",
                "type": "color"
            },
            "900": {
                "value": "#142A29",
                "type": "color"
            }
        }
    }
}

Palettes built on #12AAA5

Color Lab

Pairs with #12AAA5

UI roles & guardrails

In real applications

Scales

Every model

Export