What color is #2A58CD?

#2A58CD is a medium blue. In RGB it is rgb(42, 88, 205), and in HSL hsl(223, 66%, 48%).

Is #2A58CD accessible as text?

On white, #2A58CD has a contrast ratio of 6.22:1 (passes WCAG AA for body text); on black it is 3.38:1 (fails). For text placed on #2A58CD, use white for the best readability.

What is the closest Tailwind color to #2A58CD?

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

What colors go well with #2A58CD?

#2A58CD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CB9D2A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2A58CD below.

Is #2A58CD good for buttons?

#2A58CD works well for buttons and highlights, but use white text on #2A58CD — black text only reaches 3.38:1, below the 4.5:1 needed for normal-size labels.

Is #2A58CD the same as CSS royalblue?

No — #2A58CD is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#2A58CD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2A58CD

Not just a swatch — here's how #2A58CD works with other colors. Named schemes with #2A58CD in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #2A58CD Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5180EC

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 #2A58CD Accent #A5C4C2 Surface #DDDBBF 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 #2A58CD 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 #2A58CD Secondary #788DB5 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 #2A58CD Secondary #E76A75 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 #2A58CD 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 9/100

Cool

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 53/100

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 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 52/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 90/100

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 #2A58CD

For UI

For branding

For interior

For fashion

People also use #2A58CD with

Lagoon Blue Han Purple 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 6.2:1. Use

Subtle surface Use #D8DFF1 for cards and hover fills. Tint 80

Avoid beside #322ACB — 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 #2A58CD 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: #2A58CD;
  --color-base-rgb: 42 88 205;
  --color-base-oklch: oklch(50.1% 0.189 264.3);
  --color-50: #F2F5FD;
  --color-100: #DCE4F9;
  --color-200: #BBCBF1;
  --color-300: #8DA5E2;
  --color-400: #6281D0;
  --color-500: #4061B5;
  --color-600: #384F8A;
  --color-700: #2D3C62;
  --color-800: #212A40;
  --color-900: #161B28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cerulean: {
    50: '#F2F5FD',
    100: '#DCE4F9',
    200: '#BBCBF1',
    300: '#8DA5E2',
    400: '#6281D0',
    500: '#4061B5',
    600: '#384F8A',
    700: '#2D3C62',
    800: '#212A40',
    900: '#161B28',
  },
}

$base: #2A58CD;
$base-ink: #FFFFFF;
$base-50: #F2F5FD;
$base-100: #DCE4F9;
$base-200: #BBCBF1;
$base-300: #8DA5E2;
$base-400: #6281D0;
$base-500: #4061B5;
$base-600: #384F8A;
$base-700: #2D3C62;
$base-800: #212A40;
$base-900: #161B28;
$base-hover: #2146A3;
$base-subtle: #C3CFEB;

{
    "color": {
        "base": {
            "value": "#2A58CD",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F5FD",
                "type": "color"
            },
            "100": {
                "value": "#DCE4F9",
                "type": "color"
            },
            "200": {
                "value": "#BBCBF1",
                "type": "color"
            },
            "300": {
                "value": "#8DA5E2",
                "type": "color"
            },
            "400": {
                "value": "#6281D0",
                "type": "color"
            },
            "500": {
                "value": "#4061B5",
                "type": "color"
            },
            "600": {
                "value": "#384F8A",
                "type": "color"
            },
            "700": {
                "value": "#2D3C62",
                "type": "color"
            },
            "800": {
                "value": "#212A40",
                "type": "color"
            },
            "900": {
                "value": "#161B28",
                "type": "color"
            }
        }
    }
}