What color is #175B68?

#175B68 is a dark cyan. In RGB it is rgb(23, 91, 104), and in HSL hsl(190, 64%, 25%).

Is #175B68 accessible as text?

On white, #175B68 has a contrast ratio of 7.68:1 (passes WCAG AA for body text); on black it is 2.73:1 (fails). For text placed on #175B68, use white for the best readability.

What is the closest Tailwind color to #175B68?

The nearest Tailwind CSS token is cyan-800 (#005F78).

What colors go well with #175B68?

#175B68 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #692517. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #175B68 below.

Is #175B68 good for buttons?

#175B68 works well for buttons and highlights, but use white text on #175B68 — black text only reaches 2.73:1, below the 4.5:1 needed for normal-size labels.

Is #175B68 the same as CSS darkslategray?

No — #175B68 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#175B68 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #175B68

Not just a swatch — here's how #175B68 works with other colors. Named schemes with #175B68 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #175B68 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1E3549

Dark Slate Gray 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 #175B68 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Dark Slate Gray 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 #175B68 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #467D89

Dark Slate Gray 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 Slate Gray.

Vintage Leather Lead · 5 colors

Lead #175B68 Secondary #705117 Surface #E3DCC0 Accent #395143 Anchor #56233F

Dark Slate Gray 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 #175B68 Secondary #6A7D82 Support #969286 Ink #16140F

Dark Slate Gray 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 Slate Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #175B68 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 31/100

Cool

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 55/100

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 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 60/100

Moderate

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 18/100

Very low

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

UI accent fit 69/100

High

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

Surface fit 36/100

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 #175B68

For UI

For branding

For interior

For fashion

People also use #175B68 with

Sea Green Yale Blue Wine Red Platinum Dark Slate Gray

UI roles & guardrails

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

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 7.7:1. Use

Subtle surface Use #C7E5EA for cards and hover fills. Tint 80

Avoid beside #174069 — 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 #175B68 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: #175B68;
  --color-base-rgb: 23 91 104;
  --color-base-oklch: oklch(43.6% 0.068 213.5);
  --color-50: #F2FBFD;
  --color-100: #DDF4F8;
  --color-200: #BCE8F0;
  --color-300: #8ED3E1;
  --color-400: #64BCCE;
  --color-500: #42A0B3;
  --color-600: #397B89;
  --color-700: #2E5961;
  --color-800: #213B40;
  --color-900: #162427;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F2FBFD',
    100: '#DDF4F8',
    200: '#BCE8F0',
    300: '#8ED3E1',
    400: '#64BCCE',
    500: '#42A0B3',
    600: '#397B89',
    700: '#2E5961',
    800: '#213B40',
    900: '#162427',
  },
}

$base: #175B68;
$base-ink: #FFFFFF;
$base-50: #F2FBFD;
$base-100: #DDF4F8;
$base-200: #BCE8F0;
$base-300: #8ED3E1;
$base-400: #64BCCE;
$base-500: #42A0B3;
$base-600: #397B89;
$base-700: #2E5961;
$base-800: #213B40;
$base-900: #162427;
$base-hover: #124954;
$base-subtle: #AAD8E2;

{
    "color": {
        "base": {
            "value": "#175B68",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FBFD",
                "type": "color"
            },
            "100": {
                "value": "#DDF4F8",
                "type": "color"
            },
            "200": {
                "value": "#BCE8F0",
                "type": "color"
            },
            "300": {
                "value": "#8ED3E1",
                "type": "color"
            },
            "400": {
                "value": "#64BCCE",
                "type": "color"
            },
            "500": {
                "value": "#42A0B3",
                "type": "color"
            },
            "600": {
                "value": "#397B89",
                "type": "color"
            },
            "700": {
                "value": "#2E5961",
                "type": "color"
            },
            "800": {
                "value": "#213B40",
                "type": "color"
            },
            "900": {
                "value": "#162427",
                "type": "color"
            }
        }
    }
}

Palettes built on #175B68

Color Lab

Pairs with #175B68

UI roles & guardrails

In real applications

Scales

Every model

Export