What color is #3569BB?

#3569BB is a medium blue. In RGB it is rgb(53, 105, 187), and in HSL hsl(217, 56%, 47%).

Is #3569BB accessible as text?

On white, #3569BB has a contrast ratio of 5.40:1 (passes WCAG AA for body text); on black it is 3.89:1 (fails). For text placed on #3569BB, use white for the best readability.

What is the closest Tailwind color to #3569BB?

The nearest Tailwind CSS token is sky-700 (#0069A8).

What colors go well with #3569BB?

#3569BB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BB8835. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3569BB below.

Is #3569BB good for buttons?

#3569BB works well for buttons and highlights, but use white text on #3569BB — black text only reaches 3.89:1, below the 4.5:1 needed for normal-size labels.

Is #3569BB the same as CSS royalblue?

No — #3569BB is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#3569BB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3569BB

Not just a swatch — here's how #3569BB works with other colors. Named schemes with #3569BB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3569BB Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Denim Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Tech Product Signal · 5 colors

Signal #3569BB Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5E8FDB

Denim 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 Denim Blue.

Vintage Leather Lead · 5 colors

Lead #3569BB Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

Denim 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.

Berry & Cream Lead · 5 colors

Lead #3569BB Surface #F6E5D8 Anchor #5A2144 Accent #E4C2CA Secondary #322B2F

Denim Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #3569BB Secondary #8396B3 Support #9D8F89 Ink #16140F

Denim 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 Denim Blue carrying the quiet middle.

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Color Lab

How #3569BB 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 14/100

Cool

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

Softness 40/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 48/100

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 44/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 38/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 100/100

Very high

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

Surface fit 12/100

Very low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3569BB

For UI

For branding

For interior

For fashion

People also use #3569BB with

Lagoon Blue Cerulean Dark Goldenrod Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

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 5.4:1. Use

Subtle surface Use #D9E1EF for cards and hover fills. Tint 80

Avoid beside #353BBB — 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 #3569BB 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: #3569BB;
  --color-base-rgb: 53 105 187;
  --color-base-oklch: oklch(52.8% 0.141 259.2);
  --color-50: #F3F6FC;
  --color-100: #DFE8F7;
  --color-200: #BFD1ED;
  --color-300: #93AFDC;
  --color-400: #6B8EC7;
  --color-500: #496FAC;
  --color-600: #3E5984;
  --color-700: #31425E;
  --color-800: #232D3E;
  --color-900: #171D26;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  denim-blue: {
    50: '#F3F6FC',
    100: '#DFE8F7',
    200: '#BFD1ED',
    300: '#93AFDC',
    400: '#6B8EC7',
    500: '#496FAC',
    600: '#3E5984',
    700: '#31425E',
    800: '#232D3E',
    900: '#171D26',
  },
}

$base: #3569BB;
$base-ink: #FFFFFF;
$base-50: #F3F6FC;
$base-100: #DFE8F7;
$base-200: #BFD1ED;
$base-300: #93AFDC;
$base-400: #6B8EC7;
$base-500: #496FAC;
$base-600: #3E5984;
$base-700: #31425E;
$base-800: #232D3E;
$base-900: #171D26;
$base-hover: #2A5396;
$base-subtle: #C5D2E8;

{
    "color": {
        "base": {
            "value": "#3569BB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F6FC",
                "type": "color"
            },
            "100": {
                "value": "#DFE8F7",
                "type": "color"
            },
            "200": {
                "value": "#BFD1ED",
                "type": "color"
            },
            "300": {
                "value": "#93AFDC",
                "type": "color"
            },
            "400": {
                "value": "#6B8EC7",
                "type": "color"
            },
            "500": {
                "value": "#496FAC",
                "type": "color"
            },
            "600": {
                "value": "#3E5984",
                "type": "color"
            },
            "700": {
                "value": "#31425E",
                "type": "color"
            },
            "800": {
                "value": "#232D3E",
                "type": "color"
            },
            "900": {
                "value": "#171D26",
                "type": "color"
            }
        }
    }
}

Palettes built on #3569BB

Color Lab

Pairs with #3569BB

UI roles & guardrails

In real applications

Scales

Every model

Export