What color is #2F495B?

#2F495B is a dark, muted cyan-blue. In RGB it is rgb(47, 73, 91), and in HSL hsl(205, 32%, 27%).

Is #2F495B accessible as text?

On white, #2F495B has a contrast ratio of 9.44:1 (passes WCAG AA for body text); on black it is 2.22:1 (fails). For text placed on #2F495B, use white for the best readability.

What is the closest Tailwind color to #2F495B?

The nearest Tailwind CSS token is cyan-900 (#104E64).

What colors go well with #2F495B?

#2F495B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5B412F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2F495B below.

Is #2F495B good for buttons?

#2F495B works well for buttons and highlights, but use white text on #2F495B — black text only reaches 2.22:1, below the 4.5:1 needed for normal-size labels.

Is #2F495B the same as CSS darkslategray?

No — #2F495B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#2F495B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2F495B

Not just a swatch — here's how #2F495B works with other colors. Named schemes with #2F495B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2F495B Accent #A5C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Charcoal 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 #2F495B Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Charcoal 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 #2F495B Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #526A7B

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

Vintage Leather Lead · 5 colors

Lead #2F495B Secondary #7F4439 Surface #E2DDC0 Accent #385245 Anchor #57233C

Charcoal 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 #2F495B Secondary #656E75 Support #969386 Ink #16140F

Charcoal 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 Charcoal carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #2F495B 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 37/100

Cool

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

Softness 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 58/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 62/100

High

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

Brand distinctiveness 17/100

Very low

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

UI accent fit 49/100

Moderate

Workable accent with care around contrast.

Surface fit 46/100

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 #2F495B

For UI

For branding

For interior

For fashion

People also use #2F495B with

Myrtle Green Yale Blue Taupe Gainsboro Charcoal

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 9.4:1. Use

Subtle surface Use #D1DBE2 for cards and hover fills. Tint 80

Avoid beside #2F3A5B — 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 #2F495B at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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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: #2F495B;
  --color-base-rgb: 47 73 91;
  --color-base-oklch: oklch(39.2% 0.044 239.6);
  --color-50: #F5F8FA;
  --color-100: #E4ECF2;
  --color-200: #C9D8E3;
  --color-300: #A3BBCC;
  --color-400: #7F9DB3;
  --color-500: #5E7F97;
  --color-600: #4D6475;
  --color-700: #3A4A54;
  --color-800: #293238;
  --color-900: #1A1F23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F5F8FA',
    100: '#E4ECF2',
    200: '#C9D8E3',
    300: '#A3BBCC',
    400: '#7F9DB3',
    500: '#5E7F97',
    600: '#4D6475',
    700: '#3A4A54',
    800: '#293238',
    900: '#1A1F23',
  },
}

$base: #2F495B;
$base-ink: #FFFFFF;
$base-50: #F5F8FA;
$base-100: #E4ECF2;
$base-200: #C9D8E3;
$base-300: #A3BBCC;
$base-400: #7F9DB3;
$base-500: #5E7F97;
$base-600: #4D6475;
$base-700: #3A4A54;
$base-800: #293238;
$base-900: #1A1F23;
$base-hover: #253A49;
$base-subtle: #BAC9D5;

{
    "color": {
        "base": {
            "value": "#2F495B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E4ECF2",
                "type": "color"
            },
            "200": {
                "value": "#C9D8E3",
                "type": "color"
            },
            "300": {
                "value": "#A3BBCC",
                "type": "color"
            },
            "400": {
                "value": "#7F9DB3",
                "type": "color"
            },
            "500": {
                "value": "#5E7F97",
                "type": "color"
            },
            "600": {
                "value": "#4D6475",
                "type": "color"
            },
            "700": {
                "value": "#3A4A54",
                "type": "color"
            },
            "800": {
                "value": "#293238",
                "type": "color"
            },
            "900": {
                "value": "#1A1F23",
                "type": "color"
            }
        }
    }
}

Palettes built on #2F495B

Color Lab

Pairs with #2F495B

UI roles & guardrails

In real applications

Scales

Every model

Export