What color is #4D359E?

#4D359E is a medium indigo. In RGB it is rgb(77, 53, 158), and in HSL hsl(254, 50%, 41%).

Is #4D359E accessible as text?

On white, #4D359E has a contrast ratio of 9.06:1 (passes WCAG AA for body text); on black it is 2.32:1 (fails). For text placed on #4D359E, use white for the best readability.

What is the closest Tailwind color to #4D359E?

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

What colors go well with #4D359E?

#4D359E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #849D34. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4D359E below.

Is #4D359E good for buttons?

#4D359E works well for buttons and highlights, but use white text on #4D359E — black text only reaches 2.32:1, below the 4.5:1 needed for normal-size labels.

Is #4D359E the same as CSS darkslateblue?

No — #4D359E is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#4D359E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #4D359E

Not just a swatch — here's how #4D359E works with other colors. Named schemes with #4D359E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #4D359E Accent #A5C4C3 Surface #E9D6BF 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 #4D359E Secondary #7E4633 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 #4D359E Anchor #3B2923 Surface #F3E1D2 Accent #749F7C 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 #4D359E Surface #F5E5D7 Anchor #5C2141 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 #4D359E Secondary #727094 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 #4D359E 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 24/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 60/100

High

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 61/100

High

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

Brand distinctiveness 44/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 80/100

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 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #4D359E

For UI

For branding

For interior

For fashion

People also use #4D359E with

Denim Blue Mauveine Moss Green Gainsboro Russian Violet

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 9.1:1. Use

Subtle surface Use #DBD6EC for cards and hover fills. Tint 80

Avoid beside #70349D — 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 #4D359E 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: #4D359E;
  --color-base-rgb: 77 53 158;
  --color-base-oklch: oklch(42.0% 0.162 287.9);
  --color-50: #F5F3FC;
  --color-100: #E5E0F5;
  --color-200: #CBC2EB;
  --color-300: #A697D8;
  --color-400: #8370C2;
  --color-500: #634EA6;
  --color-600: #504280;
  --color-700: #3D335C;
  --color-800: #2A243C;
  --color-900: #1B1825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-blue: {
    50: '#F5F3FC',
    100: '#E5E0F5',
    200: '#CBC2EB',
    300: '#A697D8',
    400: '#8370C2',
    500: '#634EA6',
    600: '#504280',
    700: '#3D335C',
    800: '#2A243C',
    900: '#1B1825',
  },
}

$base: #4D359E;
$base-ink: #FFFFFF;
$base-50: #F5F3FC;
$base-100: #E5E0F5;
$base-200: #CBC2EB;
$base-300: #A697D8;
$base-400: #8370C2;
$base-500: #634EA6;
$base-600: #504280;
$base-700: #3D335C;
$base-800: #2A243C;
$base-900: #1B1825;
$base-hover: #3D2A7D;
$base-subtle: #C9C1E3;

{
    "color": {
        "base": {
            "value": "#4D359E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F3FC",
                "type": "color"
            },
            "100": {
                "value": "#E5E0F5",
                "type": "color"
            },
            "200": {
                "value": "#CBC2EB",
                "type": "color"
            },
            "300": {
                "value": "#A697D8",
                "type": "color"
            },
            "400": {
                "value": "#8370C2",
                "type": "color"
            },
            "500": {
                "value": "#634EA6",
                "type": "color"
            },
            "600": {
                "value": "#504280",
                "type": "color"
            },
            "700": {
                "value": "#3D335C",
                "type": "color"
            },
            "800": {
                "value": "#2A243C",
                "type": "color"
            },
            "900": {
                "value": "#1B1825",
                "type": "color"
            }
        }
    }
}

Palettes built on #4D359E

Color Lab

Pairs with #4D359E

UI roles & guardrails

In real applications

Scales

Every model

Export