What color is #433663?

#433663 is a dark, muted indigo. In RGB it is rgb(67, 54, 99), and in HSL hsl(257, 29%, 30%).

Is #433663 accessible as text?

On white, #433663 has a contrast ratio of 10.79:1 (passes WCAG AA for body text); on black it is 1.95:1 (fails). For text placed on #433663, use white for the best readability.

What is the closest Tailwind color to #433663?

The nearest Tailwind CSS token is mauve-700 (#463947).

What colors go well with #433663?

#433663 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #566336. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #433663 below.

Is #433663 good for buttons?

#433663 works well for buttons and highlights, but use white text on #433663 — black text only reaches 1.95:1, below the 4.5:1 needed for normal-size labels.

Is #433663 the same as CSS darkslateblue?

No — #433663 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#433663 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #433663

Not just a swatch — here's how #433663 works with other colors. Named schemes with #433663 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #433663 Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334A

Charcoal opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #433663 Secondary #AFB4B8 Surface #F1F2F0 Support #7F92A7 Anchor #2E3236

Charcoal keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #433663 Secondary #7E4632 Surface #EDD8C2 Accent #355248 Anchor #582237

Charcoal plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Luxury Packaging Feature · 5 colors

Feature #433663 Anchor #141210 Accent #DA9856 Secondary #2A2732 Surface #F3ECE3

Charcoal carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #433663 Secondary #676374 Support #9D9088 Ink #18140F

Charcoal 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 Charcoal carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #433663 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 41/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

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 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 30/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 54/100

Moderate

Workable accent with care around contrast.

Surface fit 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #433663

For UI

For branding

For interior

For fashion

People also use #433663 with

Ultra Violet Byzantium Dark Olive Green Gainsboro Gunmetal Gray

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 10.8:1. Use

Subtle surface Use #D8D4E3 for cards and hover fills. Tint 80

Avoid beside #523663 — 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 #433663 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: #433663;
  --color-base-rgb: 67 54 99;
  --color-base-oklch: oklch(36.8% 0.077 295.7);
  --color-50: #F6F5FA;
  --color-100: #E8E4F1;
  --color-200: #D1CAE2;
  --color-300: #AFA5CA;
  --color-400: #8F81B1;
  --color-500: #6F6194;
  --color-600: #594F73;
  --color-700: #423C53;
  --color-800: #2D2937;
  --color-900: #1D1B23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F6F5FA',
    100: '#E8E4F1',
    200: '#D1CAE2',
    300: '#AFA5CA',
    400: '#8F81B1',
    500: '#6F6194',
    600: '#594F73',
    700: '#423C53',
    800: '#2D2937',
    900: '#1D1B23',
  },
}

$base: #433663;
$base-ink: #FFFFFF;
$base-50: #F6F5FA;
$base-100: #E8E4F1;
$base-200: #D1CAE2;
$base-300: #AFA5CA;
$base-400: #8F81B1;
$base-500: #6F6194;
$base-600: #594F73;
$base-700: #423C53;
$base-800: #2D2937;
$base-900: #1D1B23;
$base-hover: #362B4F;
$base-subtle: #C4BED5;

{
    "color": {
        "base": {
            "value": "#433663",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F5FA",
                "type": "color"
            },
            "100": {
                "value": "#E8E4F1",
                "type": "color"
            },
            "200": {
                "value": "#D1CAE2",
                "type": "color"
            },
            "300": {
                "value": "#AFA5CA",
                "type": "color"
            },
            "400": {
                "value": "#8F81B1",
                "type": "color"
            },
            "500": {
                "value": "#6F6194",
                "type": "color"
            },
            "600": {
                "value": "#594F73",
                "type": "color"
            },
            "700": {
                "value": "#423C53",
                "type": "color"
            },
            "800": {
                "value": "#2D2937",
                "type": "color"
            },
            "900": {
                "value": "#1D1B23",
                "type": "color"
            }
        }
    }
}