What color is #3D5D64?

#3D5D64 is a dark, muted cyan. In RGB it is rgb(61, 93, 100), and in HSL hsl(191, 24%, 32%).

Is #3D5D64 accessible as text?

On white, #3D5D64 has a contrast ratio of 7.12:1 (passes WCAG AA for body text); on black it is 2.95:1 (fails). For text placed on #3D5D64, use white for the best readability.

What is the closest Tailwind color to #3D5D64?

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

What colors go well with #3D5D64?

#3D5D64 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #65453E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3D5D64 below.

Is #3D5D64 good for buttons?

#3D5D64 works well for buttons and highlights, but use white text on #3D5D64 — black text only reaches 2.95:1, below the 4.5:1 needed for normal-size labels.

Is #3D5D64 the same as CSS darkslategray?

No — #3D5D64 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#3D5D64 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3D5D64

Not just a swatch — here's how #3D5D64 works with other colors. Named schemes with #3D5D64 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3D5D64 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1E3549

Feldgrau 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 #3D5D64 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Feldgrau 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 #3D5D64 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #627F86

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

Vintage Leather Lead · 5 colors

Lead #3D5D64 Secondary #705117 Surface #E3DCC0 Accent #395143 Anchor #56233F

Feldgrau 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 #3D5D64 Secondary #768184 Support #979286 Ink #16140F

Feldgrau 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 Feldgrau carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #3D5D64 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 39/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

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 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 56/100

Moderate

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

Brand distinctiveness 15/100

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 #3D5D64

For UI

For branding

For interior

For fashion

People also use #3D5D64 with

Viridian Charcoal Liver 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 7.1:1. Use

Subtle surface Use #D6E0E2 for cards and hover fills. Tint 80

Avoid beside #3E5165 — 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 #3D5D64 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #3D5D64;
  --color-base-rgb: 61 93 100;
  --color-base-oklch: oklch(45.6% 0.039 212.9);
  --color-50: #F5F9F9;
  --color-100: #E5EEF0;
  --color-200: #CCDCE0;
  --color-300: #A8C1C7;
  --color-400: #85A6AD;
  --color-500: #658890;
  --color-600: #526A70;
  --color-700: #3E4E51;
  --color-800: #2B3436;
  --color-900: #1B2122;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  feldgrau: {
    50: '#F5F9F9',
    100: '#E5EEF0',
    200: '#CCDCE0',
    300: '#A8C1C7',
    400: '#85A6AD',
    500: '#658890',
    600: '#526A70',
    700: '#3E4E51',
    800: '#2B3436',
    900: '#1B2122',
  },
}

$base: #3D5D64;
$base-ink: #FFFFFF;
$base-50: #F5F9F9;
$base-100: #E5EEF0;
$base-200: #CCDCE0;
$base-300: #A8C1C7;
$base-400: #85A6AD;
$base-500: #658890;
$base-600: #526A70;
$base-700: #3E4E51;
$base-800: #2B3436;
$base-900: #1B2122;
$base-hover: #324B51;
$base-subtle: #C1D1D4;

{
    "color": {
        "base": {
            "value": "#3D5D64",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F9F9",
                "type": "color"
            },
            "100": {
                "value": "#E5EEF0",
                "type": "color"
            },
            "200": {
                "value": "#CCDCE0",
                "type": "color"
            },
            "300": {
                "value": "#A8C1C7",
                "type": "color"
            },
            "400": {
                "value": "#85A6AD",
                "type": "color"
            },
            "500": {
                "value": "#658890",
                "type": "color"
            },
            "600": {
                "value": "#526A70",
                "type": "color"
            },
            "700": {
                "value": "#3E4E51",
                "type": "color"
            },
            "800": {
                "value": "#2B3436",
                "type": "color"
            },
            "900": {
                "value": "#1B2122",
                "type": "color"
            }
        }
    }
}

Palettes built on #3D5D64

Color Lab

Pairs with #3D5D64

UI roles & guardrails

In real applications

Scales

Every model

Export