What color is #5B4EBE?

#5B4EBE is a medium indigo. In RGB it is rgb(91, 78, 190), and in HSL hsl(247, 46%, 53%).

Is #5B4EBE accessible as text?

On white, #5B4EBE has a contrast ratio of 6.41:1 (passes WCAG AA for body text); on black it is 3.28:1 (fails). For text placed on #5B4EBE, use white for the best readability.

What is the closest Tailwind color to #5B4EBE?

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

What colors go well with #5B4EBE?

#5B4EBE pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B1BE50. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #5B4EBE below.

Is #5B4EBE good for buttons?

#5B4EBE works well for buttons and highlights, but use white text on #5B4EBE — black text only reaches 3.28:1, below the 4.5:1 needed for normal-size labels.

Is #5B4EBE the same as CSS slateblue?

No — #5B4EBE is not the CSS named color slateblue, but slateblue (#6A5ACD) is the closest CSS named color.

#5B4EBE Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #5B4EBE

Not just a swatch — here's how #5B4EBE works with other colors. Named schemes with #5B4EBE in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #5B4EBE Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Slate Blue 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 #5B4EBE Secondary #7E4533 Surface #EDD7C2 Accent #365247 Anchor #582238

Slate 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.

Modern Café Dominant · 5 colors

Dominant #5B4EBE Anchor #3B2923 Surface #F3E1D2 Accent #759F7C Secondary #3C3734

Slate Blue 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 #5B4EBE Surface #F5E5D7 Anchor #5B2142 Accent #E5C2C8 Secondary #332B2F

Slate Blue 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 #5B4EBE Secondary #8788AF Support #9D9088 Ink #18140F

Slate 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 Slate Blue carrying the quiet middle.

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Color Lab

How #5B4EBE 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 35/100

Low

Middle-weight — neither delicate nor heavy.

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 46/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 95/100

Very high

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

Surface fit 8/100

Very low

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

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #5B4EBE

For UI

For branding

For interior

For fashion

People also use #5B4EBE with

Carolina Blue Amethyst Dark Khaki 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 6.4:1. Use

Subtle surface Use #E1DFEF for cards and hover fills. Tint 80

Avoid beside #8250BE — 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 #5B4EBE 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: #5B4EBE;
  --color-base-rgb: 91 78 190;
  --color-base-oklch: oklch(49.9% 0.169 283.7);
  --color-50: #F4F3FB;
  --color-100: #E3E1F5;
  --color-200: #C8C4E9;
  --color-300: #A19AD5;
  --color-400: #7C73BF;
  --color-500: #5B52A3;
  --color-600: #4B447E;
  --color-700: #39355A;
  --color-800: #28253C;
  --color-900: #1A1825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  slate-blue: {
    50: '#F4F3FB',
    100: '#E3E1F5',
    200: '#C8C4E9',
    300: '#A19AD5',
    400: '#7C73BF',
    500: '#5B52A3',
    600: '#4B447E',
    700: '#39355A',
    800: '#28253C',
    900: '#1A1825',
  },
}

$base: #5B4EBE;
$base-ink: #FFFFFF;
$base-50: #F4F3FB;
$base-100: #E3E1F5;
$base-200: #C8C4E9;
$base-300: #A19AD5;
$base-400: #7C73BF;
$base-500: #5B52A3;
$base-600: #4B447E;
$base-700: #39355A;
$base-800: #28253C;
$base-900: #1A1825;
$base-hover: #463A9E;
$base-subtle: #D1CEE8;

{
    "color": {
        "base": {
            "value": "#5B4EBE",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F3FB",
                "type": "color"
            },
            "100": {
                "value": "#E3E1F5",
                "type": "color"
            },
            "200": {
                "value": "#C8C4E9",
                "type": "color"
            },
            "300": {
                "value": "#A19AD5",
                "type": "color"
            },
            "400": {
                "value": "#7C73BF",
                "type": "color"
            },
            "500": {
                "value": "#5B52A3",
                "type": "color"
            },
            "600": {
                "value": "#4B447E",
                "type": "color"
            },
            "700": {
                "value": "#39355A",
                "type": "color"
            },
            "800": {
                "value": "#28253C",
                "type": "color"
            },
            "900": {
                "value": "#1A1825",
                "type": "color"
            }
        }
    }
}

Palettes built on #5B4EBE

Color Lab

Pairs with #5B4EBE

UI roles & guardrails

In real applications

Scales

Every model

Export