What color is #2F3B60?

#2F3B60 is a dark, muted blue. In RGB it is rgb(47, 59, 96), and in HSL hsl(225, 34%, 28%).

Is #2F3B60 accessible as text?

On white, #2F3B60 has a contrast ratio of 10.96:1 (passes WCAG AA for body text); on black it is 1.92:1 (fails). For text placed on #2F3B60, use white for the best readability.

What is the closest Tailwind color to #2F3B60?

The nearest Tailwind CSS token is sky-900 (#024A70).

What colors go well with #2F3B60?

#2F3B60 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #60542F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2F3B60 below.

Is #2F3B60 good for buttons?

#2F3B60 works well for buttons and highlights, but use white text on #2F3B60 — black text only reaches 1.92:1, below the 4.5:1 needed for normal-size labels.

Is #2F3B60 the same as CSS darkslategray?

No — #2F3B60 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#2F3B60 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2F3B60

Not just a swatch — here's how #2F3B60 works with other colors. Named schemes with #2F3B60 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2F3B60 Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

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 #2F3B60 Secondary #AEB4B8 Surface #F1F2F0 Support #7D92A7 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 #2F3B60 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #505C80

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 #2F3B60 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #582239

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 #F8F4EF Accent #2F3B60 Secondary #5E6371 Support #9D8F88 Ink #18140F

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 #2F3B60 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 35/100

Cool

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 26/100

Low

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

UI accent fit 48/100

Moderate

Workable accent with care around contrast.

Surface fit 41/100

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 #2F3B60

For UI

For branding

For interior

For fashion

People also use #2F3B60 with

Teal Blue Yale Blue Coffee 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 11.0:1. Use

Subtle surface Use #D1D6E3 for cards and hover fills. Tint 80

Avoid beside #332F60 — 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 #2F3B60 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #2F3B60;
  --color-base-rgb: 47 59 96;
  --color-base-oklch: oklch(36.0% 0.066 269.3);
  --color-50: #F4F6FA;
  --color-100: #E3E7F2;
  --color-200: #C8CFE4;
  --color-300: #A2ADCE;
  --color-400: #7D8BB5;
  --color-500: #5C6B98;
  --color-600: #4C5676;
  --color-700: #3A4155;
  --color-800: #282C39;
  --color-900: #1A1C23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F4F6FA',
    100: '#E3E7F2',
    200: '#C8CFE4',
    300: '#A2ADCE',
    400: '#7D8BB5',
    500: '#5C6B98',
    600: '#4C5676',
    700: '#3A4155',
    800: '#282C39',
    900: '#1A1C23',
  },
}

$base: #2F3B60;
$base-ink: #FFFFFF;
$base-50: #F4F6FA;
$base-100: #E3E7F2;
$base-200: #C8CFE4;
$base-300: #A2ADCE;
$base-400: #7D8BB5;
$base-500: #5C6B98;
$base-600: #4C5676;
$base-700: #3A4155;
$base-800: #282C39;
$base-900: #1A1C23;
$base-hover: #262F4D;
$base-subtle: #BAC1D6;

{
    "color": {
        "base": {
            "value": "#2F3B60",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E3E7F2",
                "type": "color"
            },
            "200": {
                "value": "#C8CFE4",
                "type": "color"
            },
            "300": {
                "value": "#A2ADCE",
                "type": "color"
            },
            "400": {
                "value": "#7D8BB5",
                "type": "color"
            },
            "500": {
                "value": "#5C6B98",
                "type": "color"
            },
            "600": {
                "value": "#4C5676",
                "type": "color"
            },
            "700": {
                "value": "#3A4155",
                "type": "color"
            },
            "800": {
                "value": "#282C39",
                "type": "color"
            },
            "900": {
                "value": "#1A1C23",
                "type": "color"
            }
        }
    }
}

Palettes built on #2F3B60

Color Lab

Pairs with #2F3B60

UI roles & guardrails

In real applications

Scales

Every model

Export