What color is #2B386E?

#2B386E is a dark blue. In RGB it is rgb(43, 56, 110), and in HSL hsl(228, 44%, 30%).

Is #2B386E accessible as text?

On white, #2B386E has a contrast ratio of 11.09:1 (passes WCAG AA for body text); on black it is 1.89:1 (fails). For text placed on #2B386E, use white for the best readability.

What is the closest Tailwind color to #2B386E?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #2B386E?

#2B386E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #6E612B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2B386E below.

Is #2B386E good for buttons?

#2B386E works well for buttons and highlights, but use white text on #2B386E — black text only reaches 1.89:1, below the 4.5:1 needed for normal-size labels.

Is #2B386E the same as CSS darkslateblue?

No — #2B386E is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#2B386E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2B386E

Not just a swatch — here's how #2B386E works with other colors. Named schemes with #2B386E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2B386E 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.

Luxury Packaging Feature · 5 colors

Feature #2B386E Anchor #141210 Accent #DC9659 Secondary #252833 Surface #F3ECE3

Yale Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #2B386E Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #1F183C

Yale Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Yale Blue.

Vintage Leather Lead · 5 colors

Lead #2B386E Secondary #7F4535 Surface #EED7C2 Accent #365247 Anchor #582239

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 #2B386E Secondary #5C6277 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 #2B386E 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 29/100

Cool

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 64/100

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 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 55/100

Moderate

Workable accent with care around contrast.

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2B386E

For UI

For branding

For interior

For fashion

People also use #2B386E with

Teal Blue Dark Slate Blue Dark Olive Green Gainsboro Gunmetal 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 11.1:1. Use

Subtle surface Use #D0D5E7 for cards and hover fills. Tint 80

Avoid beside #342B6E — 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 #2B386E 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: #2B386E;
  --color-base-rgb: 43 56 110;
  --color-base-oklch: oklch(36.0% 0.094 270.8);
  --color-50: #F4F5FB;
  --color-100: #E1E5F4;
  --color-200: #C4CBE8;
  --color-300: #9BA7D4;
  --color-400: #7583BD;
  --color-500: #5463A1;
  --color-600: #46507C;
  --color-700: #363D59;
  --color-800: #262A3B;
  --color-900: #191B25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F4F5FB',
    100: '#E1E5F4',
    200: '#C4CBE8',
    300: '#9BA7D4',
    400: '#7583BD',
    500: '#5463A1',
    600: '#46507C',
    700: '#363D59',
    800: '#262A3B',
    900: '#191B25',
  },
}

$base: #2B386E;
$base-ink: #FFFFFF;
$base-50: #F4F5FB;
$base-100: #E1E5F4;
$base-200: #C4CBE8;
$base-300: #9BA7D4;
$base-400: #7583BD;
$base-500: #5463A1;
$base-600: #46507C;
$base-700: #363D59;
$base-800: #262A3B;
$base-900: #191B25;
$base-hover: #222D58;
$base-subtle: #B8BFDB;

{
    "color": {
        "base": {
            "value": "#2B386E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F5FB",
                "type": "color"
            },
            "100": {
                "value": "#E1E5F4",
                "type": "color"
            },
            "200": {
                "value": "#C4CBE8",
                "type": "color"
            },
            "300": {
                "value": "#9BA7D4",
                "type": "color"
            },
            "400": {
                "value": "#7583BD",
                "type": "color"
            },
            "500": {
                "value": "#5463A1",
                "type": "color"
            },
            "600": {
                "value": "#46507C",
                "type": "color"
            },
            "700": {
                "value": "#363D59",
                "type": "color"
            },
            "800": {
                "value": "#262A3B",
                "type": "color"
            },
            "900": {
                "value": "#191B25",
                "type": "color"
            }
        }
    }
}