What color is #336BD2?

#336BD2 is a medium blue. In RGB it is rgb(51, 107, 210), and in HSL hsl(219, 64%, 51%).

Is #336BD2 accessible as text?

On white, #336BD2 has a contrast ratio of 5.03:1 (passes WCAG AA for body text); on black it is 4.17:1 (fails). For text placed on #336BD2, use white for the best readability.

What is the closest Tailwind color to #336BD2?

The nearest Tailwind CSS token is sky-600 (#0084D1).

What colors go well with #336BD2?

#336BD2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D29A32. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #336BD2 below.

Is #336BD2 good for buttons?

#336BD2 works well for buttons and highlights, but use white text on #336BD2 — black text only reaches 4.17:1, below the 4.5:1 needed for normal-size labels.

Is #336BD2 the same as CSS royalblue?

No — #336BD2 is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#336BD2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #336BD2

Not just a swatch — here's how #336BD2 works with other colors. Named schemes with #336BD2 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #336BD2 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Royal 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 #336BD2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5D92F1

Royal 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 Royal Blue.

Vintage Leather Lead · 5 colors

Lead #336BD2 Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

Royal 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 #336BD2 Surface #F6E5D8 Anchor #5A2144 Accent #E4C2CA Secondary #322B2F

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #336BD2 Secondary #869BC0 Support #9D8F88 Ink #18140F

Royal 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 Royal Blue carrying the quiet middle.

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Color Lab

How #336BD2 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 7/100

Cool

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

Softness 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 47/100

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 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 46/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 96/100

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 68/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #336BD2

For UI

For branding

For interior

For fashion

People also use #336BD2 with

Medium Turquoise Han Purple Gamboge 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 5.0:1. Use

Subtle surface Use #DAE3F2 for cards and hover fills. Tint 80

Avoid beside #3235D2 — 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 #336BD2 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: #336BD2;
  --color-base-rgb: 51 107 210;
  --color-base-oklch: oklch(54.7% 0.170 261.3);
  --color-50: #F2F6FD;
  --color-100: #DDE6F8;
  --color-200: #BCCEF0;
  --color-300: #8EABE1;
  --color-400: #6489CE;
  --color-500: #4269B3;
  --color-600: #395589;
  --color-700: #2E4061;
  --color-800: #212C40;
  --color-900: #161C27;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  royal-blue: {
    50: '#F2F6FD',
    100: '#DDE6F8',
    200: '#BCCEF0',
    300: '#8EABE1',
    400: '#6489CE',
    500: '#4269B3',
    600: '#395589',
    700: '#2E4061',
    800: '#212C40',
    900: '#161C27',
  },
}

$base: #336BD2;
$base-ink: #FFFFFF;
$base-50: #F2F6FD;
$base-100: #DDE6F8;
$base-200: #BCCEF0;
$base-300: #8EABE1;
$base-400: #6489CE;
$base-500: #4269B3;
$base-600: #395589;
$base-700: #2E4061;
$base-800: #212C40;
$base-900: #161C27;
$base-hover: #2554AB;
$base-subtle: #C7D4EC;

{
    "color": {
        "base": {
            "value": "#336BD2",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F6FD",
                "type": "color"
            },
            "100": {
                "value": "#DDE6F8",
                "type": "color"
            },
            "200": {
                "value": "#BCCEF0",
                "type": "color"
            },
            "300": {
                "value": "#8EABE1",
                "type": "color"
            },
            "400": {
                "value": "#6489CE",
                "type": "color"
            },
            "500": {
                "value": "#4269B3",
                "type": "color"
            },
            "600": {
                "value": "#395589",
                "type": "color"
            },
            "700": {
                "value": "#2E4061",
                "type": "color"
            },
            "800": {
                "value": "#212C40",
                "type": "color"
            },
            "900": {
                "value": "#161C27",
                "type": "color"
            }
        }
    }
}

Palettes built on #336BD2

Color Lab

Pairs with #336BD2

UI roles & guardrails

In real applications

Scales

Every model

Export