What color is #2E3B61?

#2E3B61 is a dark blue. In RGB it is rgb(46, 59, 97), and in HSL hsl(225, 36%, 28%).

Is #2E3B61 accessible as text?

On white, #2E3B61 has a contrast ratio of 10.97:1 (passes WCAG AA for body text); on black it is 1.91:1 (fails). For text placed on #2E3B61, use white for the best readability.

What is the closest Tailwind color to #2E3B61?

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

What colors go well with #2E3B61?

#2E3B61 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #61542E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2E3B61 below.

Is #2E3B61 good for buttons?

#2E3B61 works well for buttons and highlights, but use white text on #2E3B61 — black text only reaches 1.91:1, below the 4.5:1 needed for normal-size labels.

Is #2E3B61 the same as CSS darkslategray?

No — #2E3B61 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#2E3B61 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2E3B61

Not just a swatch — here's how #2E3B61 works with other colors. Named schemes with #2E3B61 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2E3B61 Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Yale Blue 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 #2E3B61 Secondary #AEB4B8 Surface #F1F2F0 Support #7D92A7 Anchor #2E3236

Yale Blue 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 #2E3B61 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #4F5C81

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

Vintage Leather Lead · 5 colors

Lead #2E3B61 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #58223A

Yale Blue 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 #2E3B61 Secondary #5D6371 Support #9D8F88 Ink #18140F

Yale Blue 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 Yale Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #2E3B61 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 34/100

Cool

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

Softness 34/100

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 49/100

Moderate

Workable accent with care around contrast.

Surface fit 41/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2E3B61

For UI

For branding

For interior

For fashion

People also use #2E3B61 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 #D1D6E4 for cards and hover fills. Tint 80

Avoid beside #322E61 — 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 #2E3B61 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: #2E3B61;
  --color-base-rgb: 46 59 97;
  --color-base-oklch: oklch(36.0% 0.068 268.5);
  --color-50: #F4F6FA;
  --color-100: #E3E7F2;
  --color-200: #C8CFE5;
  --color-300: #A0ACCF;
  --color-400: #7B8AB7;
  --color-500: #5B6B9A;
  --color-600: #4A5677;
  --color-700: #394056;
  --color-800: #282C39;
  --color-900: #1A1C23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F4F6FA',
    100: '#E3E7F2',
    200: '#C8CFE5',
    300: '#A0ACCF',
    400: '#7B8AB7',
    500: '#5B6B9A',
    600: '#4A5677',
    700: '#394056',
    800: '#282C39',
    900: '#1A1C23',
  },
}

$base: #2E3B61;
$base-ink: #FFFFFF;
$base-50: #F4F6FA;
$base-100: #E3E7F2;
$base-200: #C8CFE5;
$base-300: #A0ACCF;
$base-400: #7B8AB7;
$base-500: #5B6B9A;
$base-600: #4A5677;
$base-700: #394056;
$base-800: #282C39;
$base-900: #1A1C23;
$base-hover: #252F4E;
$base-subtle: #B9C0D7;

{
    "color": {
        "base": {
            "value": "#2E3B61",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E3E7F2",
                "type": "color"
            },
            "200": {
                "value": "#C8CFE5",
                "type": "color"
            },
            "300": {
                "value": "#A0ACCF",
                "type": "color"
            },
            "400": {
                "value": "#7B8AB7",
                "type": "color"
            },
            "500": {
                "value": "#5B6B9A",
                "type": "color"
            },
            "600": {
                "value": "#4A5677",
                "type": "color"
            },
            "700": {
                "value": "#394056",
                "type": "color"
            },
            "800": {
                "value": "#282C39",
                "type": "color"
            },
            "900": {
                "value": "#1A1C23",
                "type": "color"
            }
        }
    }
}

Palettes built on #2E3B61

Color Lab

Pairs with #2E3B61

UI roles & guardrails

In real applications

Scales

Every model

Export