What color is #504BE9?

#504BE9 is a medium, vivid blue-violet. In RGB it is rgb(80, 75, 233), and in HSL hsl(242, 78%, 60%).

Is #504BE9 accessible as text?

On white, #504BE9 has a contrast ratio of 5.96:1 (passes WCAG AA for body text); on black it is 3.52:1 (fails). For text placed on #504BE9, use white for the best readability.

What is the closest Tailwind color to #504BE9?

The nearest Tailwind CSS token is indigo-600 (#4F39F6).

What colors go well with #504BE9?

#504BE9 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E3E949. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #504BE9 below.

Is #504BE9 good for buttons?

#504BE9 works well for buttons and highlights, but use white text on #504BE9 — black text only reaches 3.52:1, below the 4.5:1 needed for normal-size labels.

Is #504BE9 the same as CSS royalblue?

No — #504BE9 is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#504BE9 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #504BE9

Not just a swatch — here's how #504BE9 works with other colors. Named schemes with #504BE9 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #504BE9 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #7079FF

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

Berry & Cream Lead · 5 colors

Lead #504BE9 Surface #F6E5D8 Anchor #5B2143 Accent #E5C2C9 Secondary #322B2F

Iris 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 #504BE9 Secondary #858FC4 Support #9D9088 Ink #18140F

Iris 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 Iris carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #504BE9 Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #21344A

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

Sunset Warmth Glow · 5 colors

Glow #504BE9 Secondary #E86A72 Accent #F6924E Anchor #583B57 Surface #F7E7D7

Iris 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 #504BE9 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 15/100

Cool

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

Softness 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 52/100

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 15/100

Very low

Clean and current — no dusty, aged cast.

Luxury 47/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 89/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 73/100

High

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

Surface fit 10/100

Very low

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

Print safety 64/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #504BE9

For UI

For branding

For interior

For fashion

People also use #504BE9 with

Picton Blue Medium Orchid Pear Gainsboro Prussian Blue

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 6.0:1. Use

Subtle surface Use #E0DFF6 for cards and hover fills. Tint 80

Avoid beside #8449E9 — 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 #504BE9 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: #504BE9;
  --color-base-rgb: 80 75 233;
  --color-base-oklch: oklch(52.2% 0.229 276.3);
  --color-50: #F1F1FE;
  --color-100: #DBDAFB;
  --color-200: #B9B6F6;
  --color-300: #8985EA;
  --color-400: #5D58DA;
  --color-500: #3A36BF;
  --color-600: #343091;
  --color-700: #2A2867;
  --color-800: #1F1E43;
  --color-900: #151429;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  iris: {
    50: '#F1F1FE',
    100: '#DBDAFB',
    200: '#B9B6F6',
    300: '#8985EA',
    400: '#5D58DA',
    500: '#3A36BF',
    600: '#343091',
    700: '#2A2867',
    800: '#1F1E43',
    900: '#151429',
  },
}

$base: #504BE9;
$base-ink: #FFFFFF;
$base-50: #F1F1FE;
$base-100: #DBDAFB;
$base-200: #B9B6F6;
$base-300: #8985EA;
$base-400: #5D58DA;
$base-500: #3A36BF;
$base-600: #343091;
$base-700: #2A2867;
$base-800: #1F1E43;
$base-900: #151429;
$base-hover: #211BDA;
$base-subtle: #CFCEF3;

{
    "color": {
        "base": {
            "value": "#504BE9",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F1FE",
                "type": "color"
            },
            "100": {
                "value": "#DBDAFB",
                "type": "color"
            },
            "200": {
                "value": "#B9B6F6",
                "type": "color"
            },
            "300": {
                "value": "#8985EA",
                "type": "color"
            },
            "400": {
                "value": "#5D58DA",
                "type": "color"
            },
            "500": {
                "value": "#3A36BF",
                "type": "color"
            },
            "600": {
                "value": "#343091",
                "type": "color"
            },
            "700": {
                "value": "#2A2867",
                "type": "color"
            },
            "800": {
                "value": "#1F1E43",
                "type": "color"
            },
            "900": {
                "value": "#151429",
                "type": "color"
            }
        }
    }
}

Palettes built on #504BE9

Color Lab

Pairs with #504BE9

UI roles & guardrails

In real applications

Scales

Every model

Export