What color is #129FAE?

#129FAE is a dark, vivid cyan. In RGB it is rgb(18, 159, 174), and in HSL hsl(186, 81%, 38%).

Is #129FAE accessible as text?

On white, #129FAE has a contrast ratio of 3.18:1 (fails WCAG AA for body text); on black it is 6.60:1 (passes). For text placed on #129FAE, use black for the best readability.

What is the closest Tailwind color to #129FAE?

The nearest Tailwind CSS token is cyan-600 (#0092B8).

What colors go well with #129FAE?

#129FAE pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AF2212. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #129FAE below.

Is #129FAE good for buttons?

#129FAE works well for buttons and highlights, but use black text on #129FAE — white text only reaches 3.18:1, below the 4.5:1 needed for normal-size labels.

Is #129FAE the same as CSS cadetblue?

No — #129FAE is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#129FAE Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #129FAE

Not just a swatch — here's how #129FAE works with other colors. Named schemes with #129FAE in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #129FAE Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Bondi Blue 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 #129FAE Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Bondi Blue 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 #129FAE Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #5DC4D1

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #129FAE Secondary #9DC0C5 Support #979286 Ink #16140F

Bondi Blue 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 Bondi Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #129FAE Anchor #372C1D Surface #EBE5D0 Accent #7F9D73 Secondary #3A3933

Bondi Blue 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 #129FAE 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 21/100

Cool

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

Softness 53/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 36/100

Low

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

Naturalness 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 44/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 42/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 77/100

High

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

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 71/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #129FAE

For UI

For branding

For interior

For fashion

People also use #129FAE with

Emerald Green Cobalt Blue Firebrick 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 Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 5.8:1. Use

Subtle surface Use #CDEEF2 for cards and hover fills. Tint 80

Avoid beside #126BAF — 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 #129FAE 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: #129FAE;
  --color-base-rgb: 18 159 174;
  --color-base-oklch: oklch(64.3% 0.108 206.9);
  --color-50: #F1FDFE;
  --color-100: #D9F9FC;
  --color-200: #B5F1F7;
  --color-300: #83E1EC;
  --color-400: #56CFDC;
  --color-500: #33B3C2;
  --color-600: #2E8993;
  --color-700: #276268;
  --color-800: #1D4044;
  --color-900: #14272A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F1FDFE',
    100: '#D9F9FC',
    200: '#B5F1F7',
    300: '#83E1EC',
    400: '#56CFDC',
    500: '#33B3C2',
    600: '#2E8993',
    700: '#276268',
    800: '#1D4044',
    900: '#14272A',
  },
}

$base: #129FAE;
$base-ink: #141310;
$base-50: #F1FDFE;
$base-100: #D9F9FC;
$base-200: #B5F1F7;
$base-300: #83E1EC;
$base-400: #56CFDC;
$base-500: #33B3C2;
$base-600: #2E8993;
$base-700: #276268;
$base-800: #1D4044;
$base-900: #14272A;
$base-hover: #0F808C;
$base-subtle: #B2E7ED;

{
    "color": {
        "base": {
            "value": "#129FAE",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDFE",
                "type": "color"
            },
            "100": {
                "value": "#D9F9FC",
                "type": "color"
            },
            "200": {
                "value": "#B5F1F7",
                "type": "color"
            },
            "300": {
                "value": "#83E1EC",
                "type": "color"
            },
            "400": {
                "value": "#56CFDC",
                "type": "color"
            },
            "500": {
                "value": "#33B3C2",
                "type": "color"
            },
            "600": {
                "value": "#2E8993",
                "type": "color"
            },
            "700": {
                "value": "#276268",
                "type": "color"
            },
            "800": {
                "value": "#1D4044",
                "type": "color"
            },
            "900": {
                "value": "#14272A",
                "type": "color"
            }
        }
    }
}

Palettes built on #129FAE

Color Lab

Pairs with #129FAE

UI roles & guardrails

In real applications

Scales

Every model

Export