What color is #15739B?

#15739B is a dark, vivid cyan-blue. In RGB it is rgb(21, 115, 155), and in HSL hsl(198, 76%, 35%).

Is #15739B accessible as text?

On white, #15739B has a contrast ratio of 5.31:1 (passes WCAG AA for body text); on black it is 3.96:1 (fails). For text placed on #15739B, use white for the best readability.

What is the closest Tailwind color to #15739B?

The nearest Tailwind CSS token is cyan-700 (#007595).

What colors go well with #15739B?

#15739B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9D3E15. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #15739B below.

Is #15739B good for buttons?

#15739B works well for buttons and highlights, but use white text on #15739B — black text only reaches 3.96:1, below the 4.5:1 needed for normal-size labels.

Is #15739B the same as CSS teal?

No — #15739B is not the CSS named color teal, but teal (#008080) is the closest CSS named color.

#15739B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #15739B

Not just a swatch — here's how #15739B works with other colors. Named schemes with #15739B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #15739B Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Teal Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Tech Product Signal · 5 colors

Signal #15739B Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4E97BC

Teal 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 Teal Blue.

Vintage Leather Lead · 5 colors

Lead #15739B Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

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

Berry & Cream Lead · 5 colors

Lead #15739B Surface #EEE9D6 Anchor #592247 Accent #E4C2CC Secondary #322B30

Teal Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #15739B Secondary #7E98A6 Support #969386 Ink #16140F

Teal 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 Teal Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #15739B 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 20/100

Cool

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

Softness 44/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 47/100

Moderate

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

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 55/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 28/100

Low

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

UI accent fit 94/100

Very high

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

Surface fit 24/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 74/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #15739B

For UI

For branding

For interior

For fashion

People also use #15739B with

Medium Sea Green Klein Blue Chestnut Platinum Charcoal

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 5.3:1. Use

Subtle surface Use #CCE5F0 for cards and hover fills. Tint 80

Avoid beside #15479D — 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 #15739B 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: #15739B;
  --color-base-rgb: 21 115 155;
  --color-base-oklch: oklch(52.4% 0.102 233.1);
  --color-50: #F1FAFE;
  --color-100: #DAF1FB;
  --color-200: #B7E3F5;
  --color-300: #87CBE9;
  --color-400: #5AB2D8;
  --color-500: #3795BD;
  --color-600: #327490;
  --color-700: #295466;
  --color-800: #1E3843;
  --color-900: #142329;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  teal-blue: {
    50: '#F1FAFE',
    100: '#DAF1FB',
    200: '#B7E3F5',
    300: '#87CBE9',
    400: '#5AB2D8',
    500: '#3795BD',
    600: '#327490',
    700: '#295466',
    800: '#1E3843',
    900: '#142329',
  },
}

$base: #15739B;
$base-ink: #FFFFFF;
$base-50: #F1FAFE;
$base-100: #DAF1FB;
$base-200: #B7E3F5;
$base-300: #87CBE9;
$base-400: #5AB2D8;
$base-500: #3795BD;
$base-600: #327490;
$base-700: #295466;
$base-800: #1E3843;
$base-900: #142329;
$base-hover: #115D7E;
$base-subtle: #B1D9EA;

{
    "color": {
        "base": {
            "value": "#15739B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FAFE",
                "type": "color"
            },
            "100": {
                "value": "#DAF1FB",
                "type": "color"
            },
            "200": {
                "value": "#B7E3F5",
                "type": "color"
            },
            "300": {
                "value": "#87CBE9",
                "type": "color"
            },
            "400": {
                "value": "#5AB2D8",
                "type": "color"
            },
            "500": {
                "value": "#3795BD",
                "type": "color"
            },
            "600": {
                "value": "#327490",
                "type": "color"
            },
            "700": {
                "value": "#295466",
                "type": "color"
            },
            "800": {
                "value": "#1E3843",
                "type": "color"
            },
            "900": {
                "value": "#142329",
                "type": "color"
            }
        }
    }
}

Palettes built on #15739B

Color Lab

Pairs with #15739B

UI roles & guardrails

In real applications

Scales

Every model

Export