What color is #0B73CD?

#0B73CD is a medium, vivid blue. In RGB it is rgb(11, 115, 205), and in HSL hsl(208, 90%, 42%).

Is #0B73CD accessible as text?

On white, #0B73CD has a contrast ratio of 4.83:1 (passes WCAG AA for body text); on black it is 4.35:1 (fails). For text placed on #0B73CD, use white for the best readability.

What is the closest Tailwind color to #0B73CD?

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

What colors go well with #0B73CD?

#0B73CD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CB650B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0B73CD below.

Is #0B73CD good for buttons?

#0B73CD works well for buttons and highlights, but use white text on #0B73CD — black text only reaches 4.35:1, below the 4.5:1 needed for normal-size labels.

Is #0B73CD the same as CSS royalblue?

No — #0B73CD is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#0B73CD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0B73CD

Not just a swatch — here's how #0B73CD works with other colors. Named schemes with #0B73CD in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0B73CD Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

True 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 #0B73CD Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4B99ED

True 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 True Blue.

Vintage Leather Lead · 5 colors

Lead #0B73CD Secondary #7F4537 Surface #E1DDC0 Accent #375245 Anchor #57233B

True 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 #0B73CD Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CB Secondary #322B2F

True 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 #0B73CD Secondary #839FBF Support #959386 Ink #16140F

True 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 True Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #0B73CD 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 5/100

Cool

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

Softness 39/100

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 37/100

Low

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 44/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 97/100

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 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #0B73CD

For UI

For branding

For interior

For fashion

People also use #0B73CD with

Turquoise Medium Blue Ginger 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 4.8:1. Use

Subtle surface Use #CEE3F5 for cards and hover fills. Tint 80

Avoid beside #0B31CB — 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 #0B73CD at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #0B73CD;
  --color-base-rgb: 11 115 205;
  --color-base-oklch: oklch(55.3% 0.162 252.2);
  --color-50: #F0F8FE;
  --color-100: #D8ECFD;
  --color-200: #B2D9FB;
  --color-300: #7EBBF2;
  --color-400: #4F9EE3;
  --color-500: #2B80CA;
  --color-600: #296599;
  --color-700: #234A6C;
  --color-800: #1B3246;
  --color-900: #121F2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  true-blue: {
    50: '#F0F8FE',
    100: '#D8ECFD',
    200: '#B2D9FB',
    300: '#7EBBF2',
    400: '#4F9EE3',
    500: '#2B80CA',
    600: '#296599',
    700: '#234A6C',
    800: '#1B3246',
    900: '#121F2B',
  },
}

$base: #0B73CD;
$base-ink: #FFFFFF;
$base-50: #F0F8FE;
$base-100: #D8ECFD;
$base-200: #B2D9FB;
$base-300: #7EBBF2;
$base-400: #4F9EE3;
$base-500: #2B80CA;
$base-600: #296599;
$base-700: #234A6C;
$base-800: #1B3246;
$base-900: #121F2B;
$base-hover: #095BA3;
$base-subtle: #B4D5F1;

{
    "color": {
        "base": {
            "value": "#0B73CD",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F8FE",
                "type": "color"
            },
            "100": {
                "value": "#D8ECFD",
                "type": "color"
            },
            "200": {
                "value": "#B2D9FB",
                "type": "color"
            },
            "300": {
                "value": "#7EBBF2",
                "type": "color"
            },
            "400": {
                "value": "#4F9EE3",
                "type": "color"
            },
            "500": {
                "value": "#2B80CA",
                "type": "color"
            },
            "600": {
                "value": "#296599",
                "type": "color"
            },
            "700": {
                "value": "#234A6C",
                "type": "color"
            },
            "800": {
                "value": "#1B3246",
                "type": "color"
            },
            "900": {
                "value": "#121F2B",
                "type": "color"
            }
        }
    }
}

Palettes built on #0B73CD

Color Lab

Pairs with #0B73CD

UI roles & guardrails

In real applications

Scales

Every model

Export