What color is #133E72?

#133E72 is a dark, vivid blue. In RGB it is rgb(19, 62, 114), and in HSL hsl(213, 71%, 26%).

Is #133E72 accessible as text?

On white, #133E72 has a contrast ratio of 10.72:1 (passes WCAG AA for body text); on black it is 1.96:1 (fails). For text placed on #133E72, use white for the best readability.

What is the closest Tailwind color to #133E72?

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

What colors go well with #133E72?

#133E72 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #714713. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #133E72 below.

Is #133E72 good for buttons?

#133E72 works well for buttons and highlights, but use white text on #133E72 — black text only reaches 1.96:1, below the 4.5:1 needed for normal-size labels.

Is #133E72 the same as CSS darkslateblue?

No — #133E72 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#133E72 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #133E72

Not just a swatch — here's how #133E72 works with other colors. Named schemes with #133E72 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #133E72 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

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 #133E72 Anchor #141210 Accent #AEAE52 Secondary #222933 Surface #F0EEE3

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 #133E72 Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #161C42

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 #133E72 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57233B

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 #F6F4EF Accent #133E72 Secondary #576679 Support #9D8F89 Ink #16140F

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 #133E72 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 23/100

Cool

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

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 42/100

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 39/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 59/100

Moderate

Workable accent with care around contrast.

Surface fit 31/100

Low

Usable as a tinted surface in measured doses.

Print safety 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #133E72

For UI

For branding

For interior

For fashion

People also use #133E72 with

Dark Cyan Midnight Blue Sepia 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 10.7:1. Use

Subtle surface Use #C6D7ED for cards and hover fills. Tint 80

Avoid beside #131E71 — 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 #133E72 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: #133E72;
  --color-base-rgb: 19 62 114;
  --color-base-oklch: oklch(36.5% 0.101 255.5);
  --color-50: #F1F7FD;
  --color-100: #DBE9FA;
  --color-200: #B9D3F3;
  --color-300: #8AB3E5;
  --color-400: #5E93D4;
  --color-500: #3C74B9;
  --color-600: #355C8D;
  --color-700: #2B4564;
  --color-800: #1F2F42;
  --color-900: #151E28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F1F7FD',
    100: '#DBE9FA',
    200: '#B9D3F3',
    300: '#8AB3E5',
    400: '#5E93D4',
    500: '#3C74B9',
    600: '#355C8D',
    700: '#2B4564',
    800: '#1F2F42',
    900: '#151E28',
  },
}

$base: #133E72;
$base-ink: #FFFFFF;
$base-50: #F1F7FD;
$base-100: #DBE9FA;
$base-200: #B9D3F3;
$base-300: #8AB3E5;
$base-400: #5E93D4;
$base-500: #3C74B9;
$base-600: #355C8D;
$base-700: #2B4564;
$base-800: #1F2F42;
$base-900: #151E28;
$base-hover: #0F315B;
$base-subtle: #A8C3E5;

{
    "color": {
        "base": {
            "value": "#133E72",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F7FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE9FA",
                "type": "color"
            },
            "200": {
                "value": "#B9D3F3",
                "type": "color"
            },
            "300": {
                "value": "#8AB3E5",
                "type": "color"
            },
            "400": {
                "value": "#5E93D4",
                "type": "color"
            },
            "500": {
                "value": "#3C74B9",
                "type": "color"
            },
            "600": {
                "value": "#355C8D",
                "type": "color"
            },
            "700": {
                "value": "#2B4564",
                "type": "color"
            },
            "800": {
                "value": "#1F2F42",
                "type": "color"
            },
            "900": {
                "value": "#151E28",
                "type": "color"
            }
        }
    }
}

Palettes built on #133E72

Color Lab

Pairs with #133E72

UI roles & guardrails

In real applications

Scales

Every model

Export