What color is #503DB3?

#503DB3 is a medium indigo. In RGB it is rgb(80, 61, 179), and in HSL hsl(250, 49%, 47%).

Is #503DB3 accessible as text?

On white, #503DB3 has a contrast ratio of 7.90:1 (passes WCAG AA for body text); on black it is 2.66:1 (fails). For text placed on #503DB3, use white for the best readability.

What is the closest Tailwind color to #503DB3?

The nearest Tailwind CSS token is indigo-800 (#372AAC).

What colors go well with #503DB3?

#503DB3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9FB33D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #503DB3 below.

Is #503DB3 good for buttons?

#503DB3 works well for buttons and highlights, but use white text on #503DB3 — black text only reaches 2.66:1, below the 4.5:1 needed for normal-size labels.

Is #503DB3 the same as CSS rebeccapurple?

No — #503DB3 is not the CSS named color rebeccapurple, but rebeccapurple (#663399) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#503DB3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #503DB3

Not just a swatch — here's how #503DB3 works with other colors. Named schemes with #503DB3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #503DB3 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

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

Vintage Leather Lead · 5 colors

Lead #503DB3 Secondary #7E4533 Surface #EDD7C2 Accent #365247 Anchor #582238

Rebecca Purple plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Modern Café Dominant · 5 colors

Dominant #503DB3 Anchor #3B2923 Surface #F3E1D2 Accent #759F7C Secondary #3C3734

Rebecca Purple anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Berry & Cream Lead · 5 colors

Lead #503DB3 Surface #F5E5D7 Anchor #5B2142 Accent #E5C2C8 Secondary #332B2F

Rebecca Purple 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 #503DB3 Secondary #797AA3 Support #9D9088 Ink #18140F

Rebecca Purple 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 Rebecca Purple carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #503DB3 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 21/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 58/100

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 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 57/100

Moderate

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 48/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 85/100

Very high

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

Surface fit 11/100

Very low

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

Print safety 74/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #503DB3

For UI

For branding

For interior

For fashion

People also use #503DB3 with

Glaucous Dark Orchid Citron Gainsboro Prussian Blue

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

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 7.9:1. Use

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

Avoid beside #783DB3 — 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 #503DB3 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: #503DB3;
  --color-base-rgb: 80 61 179;
  --color-base-oklch: oklch(45.3% 0.178 284.1);
  --color-50: #F5F3FB;
  --color-100: #E4E0F5;
  --color-200: #C9C2EA;
  --color-300: #A398D7;
  --color-400: #7E70C2;
  --color-500: #5E4FA6;
  --color-600: #4D427F;
  --color-700: #3A345B;
  --color-800: #29253C;
  --color-900: #1A1825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  rebecca-purple: {
    50: '#F5F3FB',
    100: '#E4E0F5',
    200: '#C9C2EA',
    300: '#A398D7',
    400: '#7E70C2',
    500: '#5E4FA6',
    600: '#4D427F',
    700: '#3A345B',
    800: '#29253C',
    900: '#1A1825',
  },
}

$base: #503DB3;
$base-ink: #FFFFFF;
$base-50: #F5F3FB;
$base-100: #E4E0F5;
$base-200: #C9C2EA;
$base-300: #A398D7;
$base-400: #7E70C2;
$base-500: #5E4FA6;
$base-600: #4D427F;
$base-700: #3A345B;
$base-800: #29253C;
$base-900: #1A1825;
$base-hover: #41318F;
$base-subtle: #CCC7E6;

{
    "color": {
        "base": {
            "value": "#503DB3",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F3FB",
                "type": "color"
            },
            "100": {
                "value": "#E4E0F5",
                "type": "color"
            },
            "200": {
                "value": "#C9C2EA",
                "type": "color"
            },
            "300": {
                "value": "#A398D7",
                "type": "color"
            },
            "400": {
                "value": "#7E70C2",
                "type": "color"
            },
            "500": {
                "value": "#5E4FA6",
                "type": "color"
            },
            "600": {
                "value": "#4D427F",
                "type": "color"
            },
            "700": {
                "value": "#3A345B",
                "type": "color"
            },
            "800": {
                "value": "#29253C",
                "type": "color"
            },
            "900": {
                "value": "#1A1825",
                "type": "color"
            }
        }
    }
}

Palettes built on #503DB3

Color Lab

Pairs with #503DB3

UI roles & guardrails

In real applications

Scales

Every model

Export