What color is #17839B?

#17839B is a dark, vivid cyan. In RGB it is rgb(23, 131, 155), and in HSL hsl(191, 74%, 35%).

Is #17839B accessible as text?

On white, #17839B has a contrast ratio of 4.42:1 (fails WCAG AA for body text); on black it is 4.76:1 (passes). For text placed on #17839B, use black for the best readability.

What is the closest Tailwind color to #17839B?

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

What colors go well with #17839B?

#17839B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9B2F17. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #17839B below.

Is #17839B good for buttons?

#17839B works well for buttons and highlights, but use black text on #17839B — white text only reaches 4.42:1, below the 4.5:1 needed for normal-size labels.

Is #17839B the same as CSS darkcyan?

No — #17839B is not the CSS named color darkcyan, but darkcyan (#008B8B) is the closest CSS named color.

#17839B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #17839B

Not just a swatch — here's how #17839B works with other colors. Named schemes with #17839B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #17839B Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

Dark Cyan 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 #17839B Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #54A7BD

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

Vintage Leather Lead · 5 colors

Lead #17839B Secondary #705116 Surface #E3DCC0 Accent #395244 Anchor #56233E

Dark Cyan 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 #17839B Surface #EEE9D6 Anchor #582248 Accent #E3C2CD Secondary #322B30

Dark Cyan 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 #17839B Secondary #89A5AE Support #969386 Ink #16140F

Dark Cyan 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 Dark Cyan carrying the quiet middle.

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Color Lab

How #17839B 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 22/100

Cool

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

Softness 48/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

Moderate

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

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 57/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 50/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 26/100

Low

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

UI accent fit 90/100

Very high

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

Surface fit 29/100

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 #17839B

For UI

For branding

For interior

For fashion

People also use #17839B with

Medium Sea Green Egyptian Blue Burnt Umber Platinum Dark Slate Gray

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

Body text Do not use for body copy on light surfaces. Avoid

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

Background Pair with white text at 4.4:1. Use

Subtle surface Use #CCE9F0 for cards and hover fills. Tint 80

Avoid beside #17579B — 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 #17839B 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: #17839B;
  --color-base-rgb: 23 131 155;
  --color-base-oklch: oklch(56.5% 0.096 217.7);
  --color-50: #F1FBFE;
  --color-100: #DBF5FB;
  --color-200: #B8E9F4;
  --color-300: #88D6E7;
  --color-400: #5CC0D6;
  --color-500: #39A4BC;
  --color-600: #337E8F;
  --color-700: #2A5A65;
  --color-800: #1F3C42;
  --color-900: #152529;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  dark-cyan: {
    50: '#F1FBFE',
    100: '#DBF5FB',
    200: '#B8E9F4',
    300: '#88D6E7',
    400: '#5CC0D6',
    500: '#39A4BC',
    600: '#337E8F',
    700: '#2A5A65',
    800: '#1F3C42',
    900: '#152529',
  },
}

$base: #17839B;
$base-ink: #141310;
$base-50: #F1FBFE;
$base-100: #DBF5FB;
$base-200: #B8E9F4;
$base-300: #88D6E7;
$base-400: #5CC0D6;
$base-500: #39A4BC;
$base-600: #337E8F;
$base-700: #2A5A65;
$base-800: #1F3C42;
$base-900: #152529;
$base-hover: #13697C;
$base-subtle: #B1DFE9;

{
    "color": {
        "base": {
            "value": "#17839B",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FBFE",
                "type": "color"
            },
            "100": {
                "value": "#DBF5FB",
                "type": "color"
            },
            "200": {
                "value": "#B8E9F4",
                "type": "color"
            },
            "300": {
                "value": "#88D6E7",
                "type": "color"
            },
            "400": {
                "value": "#5CC0D6",
                "type": "color"
            },
            "500": {
                "value": "#39A4BC",
                "type": "color"
            },
            "600": {
                "value": "#337E8F",
                "type": "color"
            },
            "700": {
                "value": "#2A5A65",
                "type": "color"
            },
            "800": {
                "value": "#1F3C42",
                "type": "color"
            },
            "900": {
                "value": "#152529",
                "type": "color"
            }
        }
    }
}

Palettes built on #17839B

Color Lab

Pairs with #17839B

UI roles & guardrails

In real applications

Scales

Every model

Export