What color is #133C67?

#133C67 is a dark blue. In RGB it is rgb(19, 60, 103), and in HSL hsl(211, 69%, 24%).

Is #133C67 accessible as text?

On white, #133C67 has a contrast ratio of 11.23:1 (passes WCAG AA for body text); on black it is 1.87:1 (fails). For text placed on #133C67, use white for the best readability.

What is the closest Tailwind color to #133C67?

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

What colors go well with #133C67?

#133C67 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #673F13. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #133C67 below.

Is #133C67 good for buttons?

#133C67 works well for buttons and highlights, but use white text on #133C67 — black text only reaches 1.87:1, below the 4.5:1 needed for normal-size labels.

Is #133C67 the same as CSS darkslategray?

No — #133C67 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#133C67 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #133C67

Not just a swatch — here's how #133C67 works with other colors. Named schemes with #133C67 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #133C67 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.

Nordic Calm Accent · 5 colors

Accent #133C67 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 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 #133C67 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3A5E87

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 #133C67 Secondary #7F4537 Surface #E1DDC1 Accent #375245 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 #133C67 Secondary #556272 Support #959386 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 #133C67 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 26/100

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 43/100

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 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 52/100

Moderate

Workable accent with care around contrast.

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #133C67

For UI

For branding

For interior

For fashion

People also use #133C67 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 11.2:1. Use

Subtle surface Use #C5D8EB for cards and hover fills. Tint 80

Avoid beside #132067 — 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 #133C67 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: #133C67;
  --color-base-rgb: 19 60 103;
  --color-base-oklch: oklch(35.2% 0.088 252.6);
  --color-50: #F2F7FD;
  --color-100: #DCEAF9;
  --color-200: #BAD5F2;
  --color-300: #8BB6E4;
  --color-400: #6097D2;
  --color-500: #3E78B7;
  --color-600: #365F8C;
  --color-700: #2C4663;
  --color-800: #203041;
  --color-900: #151E28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F2F7FD',
    100: '#DCEAF9',
    200: '#BAD5F2',
    300: '#8BB6E4',
    400: '#6097D2',
    500: '#3E78B7',
    600: '#365F8C',
    700: '#2C4663',
    800: '#203041',
    900: '#151E28',
  },
}

$base: #133C67;
$base-ink: #FFFFFF;
$base-50: #F2F7FD;
$base-100: #DCEAF9;
$base-200: #BAD5F2;
$base-300: #8BB6E4;
$base-400: #6097D2;
$base-500: #3E78B7;
$base-600: #365F8C;
$base-700: #2C4663;
$base-800: #203041;
$base-900: #151E28;
$base-hover: #0F3053;
$base-subtle: #A6C4E3;

{
    "color": {
        "base": {
            "value": "#133C67",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F7FD",
                "type": "color"
            },
            "100": {
                "value": "#DCEAF9",
                "type": "color"
            },
            "200": {
                "value": "#BAD5F2",
                "type": "color"
            },
            "300": {
                "value": "#8BB6E4",
                "type": "color"
            },
            "400": {
                "value": "#6097D2",
                "type": "color"
            },
            "500": {
                "value": "#3E78B7",
                "type": "color"
            },
            "600": {
                "value": "#365F8C",
                "type": "color"
            },
            "700": {
                "value": "#2C4663",
                "type": "color"
            },
            "800": {
                "value": "#203041",
                "type": "color"
            },
            "900": {
                "value": "#151E28",
                "type": "color"
            }
        }
    }
}