What color is #2D52CB?

#2D52CB is a medium blue. In RGB it is rgb(45, 82, 203), and in HSL hsl(226, 64%, 49%).

Is #2D52CB accessible as text?

On white, #2D52CB has a contrast ratio of 6.60:1 (passes WCAG AA for body text); on black it is 3.18:1 (fails). For text placed on #2D52CB, use white for the best readability.

What is the closest Tailwind color to #2D52CB?

The nearest Tailwind CSS token is blue-700 (#1447E6).

What colors go well with #2D52CB?

#2D52CB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CDA82D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2D52CB below.

Is #2D52CB good for buttons?

#2D52CB works well for buttons and highlights, but use white text on #2D52CB — black text only reaches 3.18:1, below the 4.5:1 needed for normal-size labels.

Is #2D52CB the same as CSS royalblue?

No — #2D52CB is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#2D52CB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2D52CB

Not just a swatch — here's how #2D52CB works with other colors. Named schemes with #2D52CB in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #2D52CB Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #527BE9

Cerulean is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Cerulean.

Coastal Morning Lead · 5 colors

Lead #2D52CB Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

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

Berry & Cream Lead · 5 colors

Lead #2D52CB Surface #F6E5D8 Anchor #5B2144 Accent #E5C2CA Secondary #322B2F

Cerulean 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 #2D52CB Secondary #7688B2 Support #9D8F88 Ink #18140F

Cerulean 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 Cerulean carrying the quiet middle.

Sunset Warmth Glow · 5 colors

Glow #2D52CB Secondary #E86A74 Accent #F79251 Anchor #573B58 Surface #F7E7D7

Cerulean glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #2D52CB 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 10/100

Cool

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

Softness 32/100

Low

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 26/100

Low

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 74/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 87/100

Very high

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

Surface fit 8/100

Very low

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

Print safety 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #2D52CB

For UI

For branding

For interior

For fashion

People also use #2D52CB with

Lagoon Blue Grape 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 6.6:1. Use

Subtle surface Use #D9DFF1 for cards and hover fills. Tint 80

Avoid beside #3D2DCD — 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 #2D52CB 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: #2D52CB;
  --color-base-rgb: 45 82 203;
  --color-base-oklch: oklch(48.9% 0.192 266.2);
  --color-50: #F2F4FD;
  --color-100: #DDE3F8;
  --color-200: #BCC8F0;
  --color-300: #8EA2E1;
  --color-400: #647DCE;
  --color-500: #425CB3;
  --color-600: #394C89;
  --color-700: #2E3A61;
  --color-800: #212840;
  --color-900: #161A27;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cerulean: {
    50: '#F2F4FD',
    100: '#DDE3F8',
    200: '#BCC8F0',
    300: '#8EA2E1',
    400: '#647DCE',
    500: '#425CB3',
    600: '#394C89',
    700: '#2E3A61',
    800: '#212840',
    900: '#161A27',
  },
}

$base: #2D52CB;
$base-ink: #FFFFFF;
$base-50: #F2F4FD;
$base-100: #DDE3F8;
$base-200: #BCC8F0;
$base-300: #8EA2E1;
$base-400: #647DCE;
$base-500: #425CB3;
$base-600: #394C89;
$base-700: #2E3A61;
$base-800: #212840;
$base-900: #161A27;
$base-hover: #2442A4;
$base-subtle: #C5CEEB;

{
    "color": {
        "base": {
            "value": "#2D52CB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F4FD",
                "type": "color"
            },
            "100": {
                "value": "#DDE3F8",
                "type": "color"
            },
            "200": {
                "value": "#BCC8F0",
                "type": "color"
            },
            "300": {
                "value": "#8EA2E1",
                "type": "color"
            },
            "400": {
                "value": "#647DCE",
                "type": "color"
            },
            "500": {
                "value": "#425CB3",
                "type": "color"
            },
            "600": {
                "value": "#394C89",
                "type": "color"
            },
            "700": {
                "value": "#2E3A61",
                "type": "color"
            },
            "800": {
                "value": "#212840",
                "type": "color"
            },
            "900": {
                "value": "#161A27",
                "type": "color"
            }
        }
    }
}