What color is #581B91?

#581B91 is a dark violet. In RGB it is rgb(88, 27, 145), and in HSL hsl(271, 69%, 34%).

Is #581B91 accessible as text?

On white, #581B91 has a contrast ratio of 10.60:1 (passes WCAG AA for body text); on black it is 1.98:1 (fails). For text placed on #581B91, use white for the best readability.

What is the closest Tailwind color to #581B91?

The nearest Tailwind CSS token is purple-900 (#59168B).

What colors go well with #581B91?

#581B91 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #55931B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #581B91 below.

Is #581B91 good for buttons?

#581B91 works well for buttons and highlights, but use white text on #581B91 — black text only reaches 1.98:1, below the 4.5:1 needed for normal-size labels.

Is #581B91 the same as CSS indigo?

No — #581B91 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#581B91 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #581B91

Not just a swatch — here's how #581B91 works with other colors. Named schemes with #581B91 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #581B91 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C7 Secondary #332B2F

Indigo sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Coastal Morning Lead · 5 colors

Lead #581B91 Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334B

Indigo 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 #581B91 Secondary #7E4631 Surface #EDD8C1 Accent #355248 Anchor #592236

Indigo 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 #581B91 Anchor #3B2923 Surface #F2E1D1 Accent #739F7E Secondary #3C3734

Indigo 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #581B91 Secondary #72638A Support #9C9088 Ink #18140F

Indigo 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 Indigo carrying the quiet middle.

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Color Lab

How #581B91 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 34/100

Cool

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 64/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 62/100

High

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 67/100

High

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

Surface fit 15/100

Very low

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

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #581B91

For UI

For branding

For interior

For fashion

People also use #581B91 with

Egyptian Blue Dark Magenta Olive Drab Gainsboro Onyx

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 10.6:1. Use

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

Avoid beside #811B93 — 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 #581B91 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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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: #581B91;
  --color-base-rgb: 88 27 145;
  --color-base-oklch: oklch(38.9% 0.177 301.7);
  --color-50: #F8F2FD;
  --color-100: #EBDCF9;
  --color-200: #D7BAF2;
  --color-300: #B98BE4;
  --color-400: #9B60D2;
  --color-500: #7C3EB7;
  --color-600: #62368C;
  --color-700: #482C63;
  --color-800: #312041;
  --color-900: #1F1528;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F8F2FD',
    100: '#EBDCF9',
    200: '#D7BAF2',
    300: '#B98BE4',
    400: '#9B60D2',
    500: '#7C3EB7',
    600: '#62368C',
    700: '#482C63',
    800: '#312041',
    900: '#1F1528',
  },
}

$base: #581B91;
$base-ink: #FFFFFF;
$base-50: #F8F2FD;
$base-100: #EBDCF9;
$base-200: #D7BAF2;
$base-300: #B98BE4;
$base-400: #9B60D2;
$base-500: #7C3EB7;
$base-600: #62368C;
$base-700: #482C63;
$base-800: #312041;
$base-900: #1F1528;
$base-hover: #471675;
$base-subtle: #CDB2E7;

{
    "color": {
        "base": {
            "value": "#581B91",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F2FD",
                "type": "color"
            },
            "100": {
                "value": "#EBDCF9",
                "type": "color"
            },
            "200": {
                "value": "#D7BAF2",
                "type": "color"
            },
            "300": {
                "value": "#B98BE4",
                "type": "color"
            },
            "400": {
                "value": "#9B60D2",
                "type": "color"
            },
            "500": {
                "value": "#7C3EB7",
                "type": "color"
            },
            "600": {
                "value": "#62368C",
                "type": "color"
            },
            "700": {
                "value": "#482C63",
                "type": "color"
            },
            "800": {
                "value": "#312041",
                "type": "color"
            },
            "900": {
                "value": "#1F1528",
                "type": "color"
            }
        }
    }
}

Palettes built on #581B91

Color Lab

Pairs with #581B91

UI roles & guardrails

In real applications

Scales

Every model

Export