What color is #307178?

#307178 is a dark cyan. In RGB it is rgb(48, 113, 120), and in HSL hsl(186, 43%, 33%).

Is #307178 accessible as text?

On white, #307178 has a contrast ratio of 5.59:1 (passes WCAG AA for body text); on black it is 3.76:1 (fails). For text placed on #307178, use white for the best readability.

What is the closest Tailwind color to #307178?

The nearest Tailwind CSS token is teal-700 (#00786F).

What colors go well with #307178?

#307178 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #783730. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #307178 below.

Is #307178 good for buttons?

#307178 works well for buttons and highlights, but use white text on #307178 — black text only reaches 3.76:1, below the 4.5:1 needed for normal-size labels.

Is #307178 the same as CSS teal?

No — #307178 is not the CSS named color teal, but teal (#008080) is the closest CSS named color.

#307178 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #307178

Not just a swatch — here's how #307178 works with other colors. Named schemes with #307178 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #307178 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Myrtle 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 #307178 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Myrtle Green 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 #307178 Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #5C949A

Myrtle 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 Myrtle Green.

Vintage Leather Lead · 5 colors

Lead #307178 Secondary #715017 Surface #E3DCC0 Accent #395143 Anchor #55233F

Myrtle Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #307178 Secondary #7F9396 Support #979286 Ink #16140F

Myrtle 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 Myrtle Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #307178 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 32/100

Cool

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

Softness 47/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 48/100

Moderate

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

Naturalness 6/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 26/100

Low

Quiet and neutral — a supporting tone, not a signature.

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 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #307178

For UI

For branding

For interior

For fashion

People also use #307178 with

Russian Green Classic Blue Garnet Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 5.6:1. Use

Subtle surface Use #D2E5E7 for cards and hover fills. Tint 80

Avoid beside #305978 — 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 #307178 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: #307178;
  --color-base-rgb: 48 113 120;
  --color-base-oklch: oklch(51.0% 0.066 204.9);
  --color-50: #F4FAFB;
  --color-100: #E1F2F4;
  --color-200: #C5E4E8;
  --color-300: #9CCED3;
  --color-400: #75B5BD;
  --color-500: #5599A0;
  --color-600: #46767C;
  --color-700: #365559;
  --color-800: #26393B;
  --color-900: #192324;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  myrtle-green: {
    50: '#F4FAFB',
    100: '#E1F2F4',
    200: '#C5E4E8',
    300: '#9CCED3',
    400: '#75B5BD',
    500: '#5599A0',
    600: '#46767C',
    700: '#365559',
    800: '#26393B',
    900: '#192324',
  },
}

$base: #307178;
$base-ink: #FFFFFF;
$base-50: #F4FAFB;
$base-100: #E1F2F4;
$base-200: #C5E4E8;
$base-300: #9CCED3;
$base-400: #75B5BD;
$base-500: #5599A0;
$base-600: #46767C;
$base-700: #365559;
$base-800: #26393B;
$base-900: #192324;
$base-hover: #265A60;
$base-subtle: #BBD9DC;

{
    "color": {
        "base": {
            "value": "#307178",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FAFB",
                "type": "color"
            },
            "100": {
                "value": "#E1F2F4",
                "type": "color"
            },
            "200": {
                "value": "#C5E4E8",
                "type": "color"
            },
            "300": {
                "value": "#9CCED3",
                "type": "color"
            },
            "400": {
                "value": "#75B5BD",
                "type": "color"
            },
            "500": {
                "value": "#5599A0",
                "type": "color"
            },
            "600": {
                "value": "#46767C",
                "type": "color"
            },
            "700": {
                "value": "#365559",
                "type": "color"
            },
            "800": {
                "value": "#26393B",
                "type": "color"
            },
            "900": {
                "value": "#192324",
                "type": "color"
            }
        }
    }
}

Palettes built on #307178

Color Lab

Pairs with #307178

UI roles & guardrails

In real applications

Scales

Every model

Export