What color is #3C5A67?

#3C5A67 is a dark, muted cyan-blue. In RGB it is rgb(60, 90, 103), and in HSL hsl(198, 26%, 32%).

Is #3C5A67 accessible as text?

On white, #3C5A67 has a contrast ratio of 7.37:1 (passes WCAG AA for body text); on black it is 2.85:1 (fails). For text placed on #3C5A67, use white for the best readability.

What is the closest Tailwind color to #3C5A67?

The nearest Tailwind CSS token is mist-600 (#4B585B).

What colors go well with #3C5A67?

#3C5A67 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #67493C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3C5A67 below.

Is #3C5A67 good for buttons?

#3C5A67 works well for buttons and highlights, but use white text on #3C5A67 — black text only reaches 2.85:1, below the 4.5:1 needed for normal-size labels.

Is #3C5A67 the same as CSS darkslategray?

No — #3C5A67 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#3C5A67 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3C5A67

Not just a swatch — here's how #3C5A67 works with other colors. Named schemes with #3C5A67 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3C5A67 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1E344A

Iron 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 #3C5A67 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Iron 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 #3C5A67 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #607C88

Iron 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 Iron Gray.

Vintage Leather Lead · 5 colors

Lead #3C5A67 Secondary #6F5116 Surface #E2DCC0 Accent #385244 Anchor #56233D

Iron 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 #3C5A67 Secondary #757F84 Support #969386 Ink #16140F

Iron 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 Iron Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #3C5A67 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 38/100

Cool

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

Softness 45/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 52/100

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 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 57/100

Moderate

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

Brand distinctiveness 16/100

Very low

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

UI accent fit 60/100

Moderate

Workable accent with care around contrast.

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3C5A67

For UI

For branding

For interior

For fashion

People also use #3C5A67 with

Viridian Charcoal Liver Platinum

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 7.4:1. Use

Subtle surface Use #D6DFE3 for cards and hover fills. Tint 80

Avoid beside #3C4C67 — 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 #3C5A67 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: #3C5A67;
  --color-base-rgb: 60 90 103;
  --color-base-oklch: oklch(44.9% 0.041 226.9);
  --color-50: #F5F8FA;
  --color-100: #E5EDF0;
  --color-200: #CCDAE1;
  --color-300: #A7BEC8;
  --color-400: #83A2AF;
  --color-500: #648491;
  --color-600: #516771;
  --color-700: #3D4C52;
  --color-800: #2A3337;
  --color-900: #1B2022;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  iron-gray: {
    50: '#F5F8FA',
    100: '#E5EDF0',
    200: '#CCDAE1',
    300: '#A7BEC8',
    400: '#83A2AF',
    500: '#648491',
    600: '#516771',
    700: '#3D4C52',
    800: '#2A3337',
    900: '#1B2022',
  },
}

$base: #3C5A67;
$base-ink: #FFFFFF;
$base-50: #F5F8FA;
$base-100: #E5EDF0;
$base-200: #CCDAE1;
$base-300: #A7BEC8;
$base-400: #83A2AF;
$base-500: #648491;
$base-600: #516771;
$base-700: #3D4C52;
$base-800: #2A3337;
$base-900: #1B2022;
$base-hover: #304852;
$base-subtle: #C1CFD5;

{
    "color": {
        "base": {
            "value": "#3C5A67",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E5EDF0",
                "type": "color"
            },
            "200": {
                "value": "#CCDAE1",
                "type": "color"
            },
            "300": {
                "value": "#A7BEC8",
                "type": "color"
            },
            "400": {
                "value": "#83A2AF",
                "type": "color"
            },
            "500": {
                "value": "#648491",
                "type": "color"
            },
            "600": {
                "value": "#516771",
                "type": "color"
            },
            "700": {
                "value": "#3D4C52",
                "type": "color"
            },
            "800": {
                "value": "#2A3337",
                "type": "color"
            },
            "900": {
                "value": "#1B2022",
                "type": "color"
            }
        }
    }
}

Palettes built on #3C5A67

Color Lab

Pairs with #3C5A67

UI roles & guardrails

In real applications

Scales

Every model

Export