What color is #1B2B60?

#1B2B60 is a dark blue. In RGB it is rgb(27, 43, 96), and in HSL hsl(226, 56%, 24%).

Is #1B2B60 accessible as text?

On white, #1B2B60 has a contrast ratio of 13.45:1 (passes WCAG AA for body text); on black it is 1.56:1 (fails). For text placed on #1B2B60, use white for the best readability.

What is the closest Tailwind color to #1B2B60?

The nearest Tailwind CSS token is blue-950 (#162456).

What colors go well with #1B2B60?

#1B2B60 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5F4F1B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1B2B60 below.

Is #1B2B60 good for buttons?

#1B2B60 works well for buttons and highlights, but use white text on #1B2B60 — black text only reaches 1.56:1, below the 4.5:1 needed for normal-size labels.

Is #1B2B60 the same as CSS midnightblue?

No — #1B2B60 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#1B2B60 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1B2B60

Not just a swatch — here's how #1B2B60 works with other colors. Named schemes with #1B2B60 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1B2B60 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 #1B2B60 Anchor #141210 Accent #DD965A Secondary #252933 Surface #F4ECE3

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 #1B2B60 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #120C30

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 #1B2B60 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 #1B2B60 Secondary #4D5568 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 #1B2B60 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 27/100

Cool

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

Softness 28/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

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 39/100

Low

A faint retro warmth without tipping into sepia.

Luxury 73/100

High

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

Brand distinctiveness 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 40/100

Low

Workable accent with care around contrast.

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1B2B60

For UI

For branding

For interior

For fashion

People also use #1B2B60 with

Teal Blue Russian Violet Army Green 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 13.5:1. Use

Subtle surface Use #C9D0E8 for cards and hover fills. Tint 80

Avoid beside #221B5F — 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 #1B2B60 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: #1B2B60;
  --color-base-rgb: 27 43 96;
  --color-base-oklch: oklch(30.9% 0.096 267.8);
  --color-50: #F3F5FC;
  --color-100: #DFE4F7;
  --color-200: #BFCAED;
  --color-300: #93A4DC;
  --color-400: #6B80C7;
  --color-500: #4960AC;
  --color-600: #3E4E84;
  --color-700: #313B5E;
  --color-800: #23293E;
  --color-900: #171B26;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F3F5FC',
    100: '#DFE4F7',
    200: '#BFCAED',
    300: '#93A4DC',
    400: '#6B80C7',
    500: '#4960AC',
    600: '#3E4E84',
    700: '#313B5E',
    800: '#23293E',
    900: '#171B26',
  },
}

$base: #1B2B60;
$base-ink: #FFFFFF;
$base-50: #F3F5FC;
$base-100: #DFE4F7;
$base-200: #BFCAED;
$base-300: #93A4DC;
$base-400: #6B80C7;
$base-500: #4960AC;
$base-600: #3E4E84;
$base-700: #313B5E;
$base-800: #23293E;
$base-900: #171B26;
$base-hover: #16224C;
$base-subtle: #ACB8DE;

{
    "color": {
        "base": {
            "value": "#1B2B60",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F5FC",
                "type": "color"
            },
            "100": {
                "value": "#DFE4F7",
                "type": "color"
            },
            "200": {
                "value": "#BFCAED",
                "type": "color"
            },
            "300": {
                "value": "#93A4DC",
                "type": "color"
            },
            "400": {
                "value": "#6B80C7",
                "type": "color"
            },
            "500": {
                "value": "#4960AC",
                "type": "color"
            },
            "600": {
                "value": "#3E4E84",
                "type": "color"
            },
            "700": {
                "value": "#313B5E",
                "type": "color"
            },
            "800": {
                "value": "#23293E",
                "type": "color"
            },
            "900": {
                "value": "#171B26",
                "type": "color"
            }
        }
    }
}