What color is #039EA1?

#039EA1 is a dark, vivid cyan. In RGB it is rgb(3, 158, 161), and in HSL hsl(181, 96%, 32%).

Is #039EA1 accessible as text?

On white, #039EA1 has a contrast ratio of 3.28:1 (fails WCAG AA for body text); on black it is 6.41:1 (passes). For text placed on #039EA1, use black for the best readability.

What is the closest Tailwind color to #039EA1?

The nearest Tailwind CSS token is teal-600 (#009689).

What colors go well with #039EA1?

#039EA1 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A00603. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #039EA1 below.

Is #039EA1 good for buttons?

#039EA1 works well for buttons and highlights, but use black text on #039EA1 — white text only reaches 3.28:1, below the 4.5:1 needed for normal-size labels.

Is #039EA1 the same as CSS cadetblue?

No — #039EA1 is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#039EA1 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #039EA1

Not just a swatch — here's how #039EA1 works with other colors. Named schemes with #039EA1 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #039EA1 Accent #A6C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1D3549

Persian 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 #039EA1 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Persian 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 #039EA1 Secondary #9ABDBE Support #979286 Ink #16140F

Persian 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 Persian Green carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #039EA1 Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #59C2C5

Persian 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 Persian Green.

Modern Café Dominant · 5 colors

Dominant #039EA1 Anchor #382C1E Surface #ECE4D0 Accent #809C72 Secondary #3A3933

Persian 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 #039EA1 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 23/100

Cool

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

Softness 52/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

Low

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

Naturalness 14/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 50/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 42/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 79/100

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 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #039EA1

For UI

For branding

For interior

For fashion

People also use #039EA1 with

Shamrock Cobalt Blue Sangria 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 5.7:1. Use

Subtle surface Use #C4F3F4 for cards and hover fills. Tint 80

Avoid beside #0369A0 — 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 #039EA1 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: #039EA1;
  --color-base-rgb: 3 158 161;
  --color-base-oklch: oklch(63.4% 0.108 197.2);
  --color-50: #F0FEFE;
  --color-100: #D8FDFD;
  --color-200: #B1FAFC;
  --color-300: #7AF3F6;
  --color-400: #4AE6E8;
  --color-500: #26CCCF;
  --color-600: #259B9D;
  --color-700: #216D6E;
  --color-800: #194748;
  --color-900: #122B2C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  persian-green: {
    50: '#F0FEFE',
    100: '#D8FDFD',
    200: '#B1FAFC',
    300: '#7AF3F6',
    400: '#4AE6E8',
    500: '#26CCCF',
    600: '#259B9D',
    700: '#216D6E',
    800: '#194748',
    900: '#122B2C',
  },
}

$base: #039EA1;
$base-ink: #141310;
$base-50: #F0FEFE;
$base-100: #D8FDFD;
$base-200: #B1FAFC;
$base-300: #7AF3F6;
$base-400: #4AE6E8;
$base-500: #26CCCF;
$base-600: #259B9D;
$base-700: #216D6E;
$base-800: #194748;
$base-900: #122B2C;
$base-hover: #037E80;
$base-subtle: #A5F0F1;

{
    "color": {
        "base": {
            "value": "#039EA1",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FDFD",
                "type": "color"
            },
            "200": {
                "value": "#B1FAFC",
                "type": "color"
            },
            "300": {
                "value": "#7AF3F6",
                "type": "color"
            },
            "400": {
                "value": "#4AE6E8",
                "type": "color"
            },
            "500": {
                "value": "#26CCCF",
                "type": "color"
            },
            "600": {
                "value": "#259B9D",
                "type": "color"
            },
            "700": {
                "value": "#216D6E",
                "type": "color"
            },
            "800": {
                "value": "#194748",
                "type": "color"
            },
            "900": {
                "value": "#122B2C",
                "type": "color"
            }
        }
    }
}

Palettes built on #039EA1

Color Lab

Pairs with #039EA1

UI roles & guardrails

In real applications

Scales

Every model

Export