What color is #5537CD?

#5537CD is a medium indigo. In RGB it is rgb(85, 55, 205), and in HSL hsl(252, 60%, 51%).

Is #5537CD accessible as text?

On white, #5537CD has a contrast ratio of 7.46:1 (passes WCAG AA for body text); on black it is 2.81:1 (fails). For text placed on #5537CD, use white for the best readability.

What is the closest Tailwind color to #5537CD?

The nearest Tailwind CSS token is indigo-700 (#432DD7).

What colors go well with #5537CD?

#5537CD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AFCD37. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #5537CD below.

Is #5537CD good for buttons?

#5537CD works well for buttons and highlights, but use white text on #5537CD — black text only reaches 2.81:1, below the 4.5:1 needed for normal-size labels.

Is #5537CD the same as CSS slateblue?

No — #5537CD is not the CSS named color slateblue, but slateblue (#6A5ACD) is the closest CSS named color.

#5537CD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #5537CD

Not just a swatch — here's how #5537CD works with other colors. Named schemes with #5537CD in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #5537CD Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #7465EB

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

Berry & Cream Lead · 5 colors

Lead #5537CD Surface #F5E5D7 Anchor #5B2142 Accent #E5C2C8 Secondary #332B2F

Han 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 #5537CD Secondary #7E7EB0 Support #9D9088 Ink #18140F

Han 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 Han Purple carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #5537CD Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Han Purple 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 #5537CD Secondary #E86A70 Accent #F5934C Anchor #583B57 Surface #F7E7D7

Han Purple 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 #5537CD 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 20/100

Cool

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

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 57/100

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 19/100

Very low

Clean and current — no dusty, aged cast.

Luxury 52/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 83/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 75/100

High

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

Surface fit 9/100

Very low

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

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #5537CD

For UI

For branding

For interior

For fashion

People also use #5537CD with

Glaucous Dark Orchid Yellow Green 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 7.5:1. Use

Subtle surface Use #E0DBF1 for cards and hover fills. Tint 80

Avoid beside #8737CD — 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 #5537CD 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: #5537CD;
  --color-base-rgb: 85 55 205;
  --color-base-oklch: oklch(47.2% 0.216 283.6);
  --color-50: #F4F2FC;
  --color-100: #E3DEF8;
  --color-200: #C8BEEF;
  --color-300: #A091DE;
  --color-400: #7B67CB;
  --color-500: #5B46AF;
  --color-600: #4A3C86;
  --color-700: #392F60;
  --color-800: #28223F;
  --color-900: #1A1627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  han-purple: {
    50: '#F4F2FC',
    100: '#E3DEF8',
    200: '#C8BEEF',
    300: '#A091DE',
    400: '#7B67CB',
    500: '#5B46AF',
    600: '#4A3C86',
    700: '#392F60',
    800: '#28223F',
    900: '#1A1627',
  },
}

$base: #5537CD;
$base-ink: #FFFFFF;
$base-50: #F4F2FC;
$base-100: #E3DEF8;
$base-200: #C8BEEF;
$base-300: #A091DE;
$base-400: #7B67CB;
$base-500: #5B46AF;
$base-600: #4A3C86;
$base-700: #392F60;
$base-800: #28223F;
$base-900: #1A1627;
$base-hover: #432AA6;
$base-subtle: #CFC8EB;

{
    "color": {
        "base": {
            "value": "#5537CD",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F2FC",
                "type": "color"
            },
            "100": {
                "value": "#E3DEF8",
                "type": "color"
            },
            "200": {
                "value": "#C8BEEF",
                "type": "color"
            },
            "300": {
                "value": "#A091DE",
                "type": "color"
            },
            "400": {
                "value": "#7B67CB",
                "type": "color"
            },
            "500": {
                "value": "#5B46AF",
                "type": "color"
            },
            "600": {
                "value": "#4A3C86",
                "type": "color"
            },
            "700": {
                "value": "#392F60",
                "type": "color"
            },
            "800": {
                "value": "#28223F",
                "type": "color"
            },
            "900": {
                "value": "#1A1627",
                "type": "color"
            }
        }
    }
}

Palettes built on #5537CD

Color Lab

Pairs with #5537CD

UI roles & guardrails

In real applications

Scales

Every model

Export