What color is #33567D?

#33567D is a dark blue. In RGB it is rgb(51, 86, 125), and in HSL hsl(212, 42%, 35%).

Is #33567D accessible as text?

On white, #33567D has a contrast ratio of 7.59:1 (passes WCAG AA for body text); on black it is 2.77:1 (fails). For text placed on #33567D, use white for the best readability.

What is the closest Tailwind color to #33567D?

The nearest Tailwind CSS token is sky-800 (#00598A).

What colors go well with #33567D?

#33567D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7F5C34. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #33567D below.

Is #33567D good for buttons?

#33567D works well for buttons and highlights, but use white text on #33567D — black text only reaches 2.77:1, below the 4.5:1 needed for normal-size labels.

Is #33567D the same as CSS darkslategray?

No — #33567D is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#33567D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #33567D

Not just a swatch — here's how #33567D works with other colors. Named schemes with #33567D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #33567D Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Classic 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 #33567D Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Classic 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 #33567D Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #58799E

Classic 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 Classic Blue.

Vintage Leather Lead · 5 colors

Lead #33567D Secondary #7F4537 Surface #E1DDC0 Accent #375245 Anchor #57233B

Classic 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 #33567D Secondary #717D8C Support #959386 Ink #16140F

Classic 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 Classic Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #33567D 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 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 54/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 60/100

Moderate

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

Brand distinctiveness 21/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 75/100

High

Strong interactive accent — visible and can carry a legible label.

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 #33567D

For UI

For branding

For interior

For fashion

People also use #33567D with

Cadet Blue Dark Slate Blue Raw Umber 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 7.6:1. Use

Subtle surface Use #D4DDE8 for cards and hover fills. Tint 80

Avoid beside #343E7F — 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 #33567D 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: #33567D;
  --color-base-rgb: 51 86 125;
  --color-base-oklch: oklch(44.5% 0.076 252.3);
  --color-50: #F4F7FB;
  --color-100: #E2EAF4;
  --color-200: #C5D5E7;
  --color-300: #9CB6D3;
  --color-400: #7697BC;
  --color-500: #55789F;
  --color-600: #475F7B;
  --color-700: #364658;
  --color-800: #26303B;
  --color-900: #191E24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F4F7FB',
    100: '#E2EAF4',
    200: '#C5D5E7',
    300: '#9CB6D3',
    400: '#7697BC',
    500: '#55789F',
    600: '#475F7B',
    700: '#364658',
    800: '#26303B',
    900: '#191E24',
  },
}

$base: #33567D;
$base-ink: #FFFFFF;
$base-50: #F4F7FB;
$base-100: #E2EAF4;
$base-200: #C5D5E7;
$base-300: #9CB6D3;
$base-400: #7697BC;
$base-500: #55789F;
$base-600: #475F7B;
$base-700: #364658;
$base-800: #26303B;
$base-900: #191E24;
$base-hover: #294565;
$base-subtle: #BDCCDD;

{
    "color": {
        "base": {
            "value": "#33567D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E2EAF4",
                "type": "color"
            },
            "200": {
                "value": "#C5D5E7",
                "type": "color"
            },
            "300": {
                "value": "#9CB6D3",
                "type": "color"
            },
            "400": {
                "value": "#7697BC",
                "type": "color"
            },
            "500": {
                "value": "#55789F",
                "type": "color"
            },
            "600": {
                "value": "#475F7B",
                "type": "color"
            },
            "700": {
                "value": "#364658",
                "type": "color"
            },
            "800": {
                "value": "#26303B",
                "type": "color"
            },
            "900": {
                "value": "#191E24",
                "type": "color"
            }
        }
    }
}

Palettes built on #33567D

Color Lab

Pairs with #33567D

UI roles & guardrails

In real applications

Scales

Every model

Export