What color is #4E409C?

#4E409C is a medium indigo. In RGB it is rgb(78, 64, 156), and in HSL hsl(249, 42%, 43%).

Is #4E409C accessible as text?

On white, #4E409C has a contrast ratio of 8.28:1 (passes WCAG AA for body text); on black it is 2.54:1 (fails). For text placed on #4E409C, use white for the best readability.

What is the closest Tailwind color to #4E409C?

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

What colors go well with #4E409C?

#4E409C pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8E9C40. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4E409C below.

Is #4E409C good for buttons?

#4E409C works well for buttons and highlights, but use white text on #4E409C — black text only reaches 2.54:1, below the 4.5:1 needed for normal-size labels.

Is #4E409C the same as CSS darkslateblue?

No — #4E409C is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#4E409C Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #4E409C

Not just a swatch — here's how #4E409C works with other colors. Named schemes with #4E409C in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #4E409C Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Dark 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 #4E409C Secondary #7E4533 Surface #EDD8C2 Accent #365247 Anchor #582238

Dark 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 #4E409C Anchor #3B2923 Surface #F3E1D2 Accent #759F7C Secondary #3C3734

Dark 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 #4E409C Surface #F5E5D7 Anchor #5B2142 Accent #E5C2C8 Secondary #332B2F

Dark 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 #4E409C Secondary #777697 Support #9D9088 Ink #18140F

Dark 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 Dark Slate Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #4E409C 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 26/100

Cool

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

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 40/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 61/100

High

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

Brand distinctiveness 39/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 86/100

Very high

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

Surface fit 13/100

Very low

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

Print safety 80/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #4E409C

For UI

For branding

For interior

For fashion

People also use #4E409C with

Steel Blue Royal Purple Moss 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 8.3:1. Use

Subtle surface Use #DCD9EB for cards and hover fills. Tint 80

Avoid beside #6C409C — 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 #4E409C at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #4E409C;
  --color-base-rgb: 78 64 156;
  --color-base-oklch: oklch(43.8% 0.144 285.8);
  --color-50: #F5F4FB;
  --color-100: #E4E2F4;
  --color-200: #CAC5E7;
  --color-300: #A59CD3;
  --color-400: #8176BC;
  --color-500: #61559F;
  --color-600: #4F477B;
  --color-700: #3C3658;
  --color-800: #29263B;
  --color-900: #1B1924;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-blue: {
    50: '#F5F4FB',
    100: '#E4E2F4',
    200: '#CAC5E7',
    300: '#A59CD3',
    400: '#8176BC',
    500: '#61559F',
    600: '#4F477B',
    700: '#3C3658',
    800: '#29263B',
    900: '#1B1924',
  },
}

$base: #4E409C;
$base-ink: #FFFFFF;
$base-50: #F5F4FB;
$base-100: #E4E2F4;
$base-200: #CAC5E7;
$base-300: #A59CD3;
$base-400: #8176BC;
$base-500: #61559F;
$base-600: #4F477B;
$base-700: #3C3658;
$base-800: #29263B;
$base-900: #1B1924;
$base-hover: #3E337D;
$base-subtle: #CAC5E1;

{
    "color": {
        "base": {
            "value": "#4E409C",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E4E2F4",
                "type": "color"
            },
            "200": {
                "value": "#CAC5E7",
                "type": "color"
            },
            "300": {
                "value": "#A59CD3",
                "type": "color"
            },
            "400": {
                "value": "#8176BC",
                "type": "color"
            },
            "500": {
                "value": "#61559F",
                "type": "color"
            },
            "600": {
                "value": "#4F477B",
                "type": "color"
            },
            "700": {
                "value": "#3C3658",
                "type": "color"
            },
            "800": {
                "value": "#29263B",
                "type": "color"
            },
            "900": {
                "value": "#1B1924",
                "type": "color"
            }
        }
    }
}