What color is #423772?

#423772 is a dark indigo. In RGB it is rgb(66, 55, 114), and in HSL hsl(251, 35%, 33%).

Is #423772 accessible as text?

On white, #423772 has a contrast ratio of 10.39:1 (passes WCAG AA for body text); on black it is 2.02:1 (fails). For text placed on #423772, use white for the best readability.

What is the closest Tailwind color to #423772?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #423772?

#423772 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #677237. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #423772 below.

Is #423772 good for buttons?

#423772 works well for buttons and highlights, but use white text on #423772 — black text only reaches 2.02:1, below the 4.5:1 needed for normal-size labels.

Is #423772 the same as CSS darkslateblue?

No — #423772 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#423772 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #423772

Not just a swatch — here's how #423772 works with other colors. Named schemes with #423772 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #423772 Anchor #141210 Accent #DB9757 Secondary #282732 Surface #F3ECE3

Dark Slate Blue 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.

Moody Editorial Color · 5 colors

Color #423772 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #2D193D

Dark Slate Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Dark Slate Blue.

Coastal Morning Lead · 5 colors

Lead #423772 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 #423772 Secondary #7E4633 Surface #EDD8C2 Accent #355248 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #423772 Secondary #68667C 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.

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Color Lab

How #423772 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 35/100

Cool

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

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 67/100

High

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

Brand distinctiveness 38/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 63/100

High

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

Surface fit 31/100

Low

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #423772

For UI

For branding

For interior

For fashion

People also use #423772 with

Lapis Lazuli Eminence Fern 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 10.4:1. Use

Subtle surface Use #D7D4E5 for cards and hover fills. Tint 80

Avoid beside #553772 — 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 #423772 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: #423772;
  --color-base-rgb: 66 55 114;
  --color-base-oklch: oklch(37.9% 0.098 289.5);
  --color-50: #F5F4FA;
  --color-100: #E6E3F2;
  --color-200: #CDC8E4;
  --color-300: #A9A1CE;
  --color-400: #877CB6;
  --color-500: #675C99;
  --color-600: #534B77;
  --color-700: #3E3956;
  --color-800: #2B2839;
  --color-900: #1C1A23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-blue: {
    50: '#F5F4FA',
    100: '#E6E3F2',
    200: '#CDC8E4',
    300: '#A9A1CE',
    400: '#877CB6',
    500: '#675C99',
    600: '#534B77',
    700: '#3E3956',
    800: '#2B2839',
    900: '#1C1A23',
  },
}

$base: #423772;
$base-ink: #FFFFFF;
$base-50: #F5F4FA;
$base-100: #E6E3F2;
$base-200: #CDC8E4;
$base-300: #A9A1CE;
$base-400: #877CB6;
$base-500: #675C99;
$base-600: #534B77;
$base-700: #3E3956;
$base-800: #2B2839;
$base-900: #1C1A23;
$base-hover: #342C5B;
$base-subtle: #C3BED9;

{
    "color": {
        "base": {
            "value": "#423772",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F4FA",
                "type": "color"
            },
            "100": {
                "value": "#E6E3F2",
                "type": "color"
            },
            "200": {
                "value": "#CDC8E4",
                "type": "color"
            },
            "300": {
                "value": "#A9A1CE",
                "type": "color"
            },
            "400": {
                "value": "#877CB6",
                "type": "color"
            },
            "500": {
                "value": "#675C99",
                "type": "color"
            },
            "600": {
                "value": "#534B77",
                "type": "color"
            },
            "700": {
                "value": "#3E3956",
                "type": "color"
            },
            "800": {
                "value": "#2B2839",
                "type": "color"
            },
            "900": {
                "value": "#1C1A23",
                "type": "color"
            }
        }
    }
}

Palettes built on #423772

Color Lab

Pairs with #423772

UI roles & guardrails

In real applications

Scales

Every model

Export