What color is #5B3DF5?

#5B3DF5 is a medium, vivid indigo. In RGB it is rgb(91, 61, 245), and in HSL hsl(250, 90%, 60%).

Is #5B3DF5 accessible as text?

On white, #5B3DF5 has a contrast ratio of 6.12:1 (passes WCAG AA for body text); on black it is 3.43:1 (fails). For text placed on #5B3DF5, use white for the best readability.

What is the closest Tailwind color to #5B3DF5?

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

What colors go well with #5B3DF5?

#5B3DF5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D6F53D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #5B3DF5 below.

Is #5B3DF5 good for buttons?

#5B3DF5 works well for buttons and highlights, but use white text on #5B3DF5 — black text only reaches 3.43:1, below the 4.5:1 needed for normal-size labels.

Is #5B3DF5 the same as CSS slateblue?

No — #5B3DF5 is not the CSS named color slateblue, but slateblue (#6A5ACD) is the closest CSS named color.

#5B3DF5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #5B3DF5

Not just a swatch — here's how #5B3DF5 works with other colors. Named schemes with #5B3DF5 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #5B3DF5 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #7970FF

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 #5B3DF5 Surface #F5E5D8 Anchor #5B2142 Accent #E5C2C9 Secondary #322B2F

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 #5B3DF5 Secondary #888DC9 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 #5B3DF5 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 #5B3DF5 Secondary #E86A71 Accent #F5934D 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 #5B3DF5 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 18/100

Cool

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

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 7/100

Very low

Clean and current — no dusty, aged cast.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 98/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 59/100

Moderate

Workable accent with care around contrast.

Surface fit 10/100

Very low

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

Print safety 62/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #5B3DF5

For UI

For branding

For interior

For fashion

People also use #5B3DF5 with

Cornflower Blue Electric Purple 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 6.1:1. Use

Subtle surface Use #E2DDF8 for cards and hover fills. Tint 80

Avoid beside #993DF5 — 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 #5B3DF5 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: #5B3DF5;
  --color-base-rgb: 91 61 245;
  --color-base-oklch: oklch(52.2% 0.255 280.3);
  --color-50: #F3F0FE;
  --color-100: #DED8FD;
  --color-200: #BEB2FB;
  --color-300: #917EF2;
  --color-400: #674FE3;
  --color-500: #462BCA;
  --color-600: #3C2999;
  --color-700: #2F236C;
  --color-800: #221B46;
  --color-900: #16122B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  han-purple: {
    50: '#F3F0FE',
    100: '#DED8FD',
    200: '#BEB2FB',
    300: '#917EF2',
    400: '#674FE3',
    500: '#462BCA',
    600: '#3C2999',
    700: '#2F236C',
    800: '#221B46',
    900: '#16122B',
  },
}

$base: #5B3DF5;
$base-ink: #FFFFFF;
$base-50: #F3F0FE;
$base-100: #DED8FD;
$base-200: #BEB2FB;
$base-300: #917EF2;
$base-400: #674FE3;
$base-500: #462BCA;
$base-600: #3C2999;
$base-700: #2F236C;
$base-800: #221B46;
$base-900: #16122B;
$base-hover: #310CE9;
$base-subtle: #D2CBF5;

{
    "color": {
        "base": {
            "value": "#5B3DF5",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F0FE",
                "type": "color"
            },
            "100": {
                "value": "#DED8FD",
                "type": "color"
            },
            "200": {
                "value": "#BEB2FB",
                "type": "color"
            },
            "300": {
                "value": "#917EF2",
                "type": "color"
            },
            "400": {
                "value": "#674FE3",
                "type": "color"
            },
            "500": {
                "value": "#462BCA",
                "type": "color"
            },
            "600": {
                "value": "#3C2999",
                "type": "color"
            },
            "700": {
                "value": "#2F236C",
                "type": "color"
            },
            "800": {
                "value": "#221B46",
                "type": "color"
            },
            "900": {
                "value": "#16122B",
                "type": "color"
            }
        }
    }
}

Palettes built on #5B3DF5

Color Lab

Pairs with #5B3DF5

UI roles & guardrails

In real applications

Scales

Every model

Export