What color is #424B97?

#424B97 is a medium blue-violet. In RGB it is rgb(66, 75, 151), and in HSL hsl(234, 39%, 43%).

Is #424B97 accessible as text?

On white, #424B97 has a contrast ratio of 7.82:1 (passes WCAG AA for body text); on black it is 2.68:1 (fails). For text placed on #424B97, use white for the best readability.

What is the closest Tailwind color to #424B97?

The nearest Tailwind CSS token is sky-800 (#00598A).

What colors go well with #424B97?

#424B97 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #989043. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #424B97 below.

Is #424B97 good for buttons?

#424B97 works well for buttons and highlights, but use white text on #424B97 — black text only reaches 2.68:1, below the 4.5:1 needed for normal-size labels.

Is #424B97 the same as CSS darkslateblue?

No — #424B97 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#424B97 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #424B97

Not just a swatch — here's how #424B97 works with other colors. Named schemes with #424B97 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #424B97 Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #21344A

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 #424B97 Secondary #7F4534 Surface #EED7C2 Accent #365247 Anchor #582239

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 #424B97 Anchor #3B2924 Surface #F3E1D2 Accent #769F7B 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 #424B97 Surface #F6E5D8 Anchor #5B2143 Accent #E5C2C9 Secondary #322B2F

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 #424B97 Secondary #747A96 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 #424B97 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 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 56/100

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 45/100

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 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 87/100

Very high

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

Surface fit 19/100

Very low

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

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #424B97

For UI

For branding

For interior

For fashion

People also use #424B97 with

Ocean Blue Ultra Violet 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 7.8:1. Use

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

Avoid beside #574398 — 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 #424B97 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: #424B97;
  --color-base-rgb: 66 75 151;
  --color-base-oklch: oklch(44.6% 0.123 275.2);
  --color-50: #F4F5FB;
  --color-100: #E2E4F3;
  --color-200: #C6CAE6;
  --color-300: #9EA3D1;
  --color-400: #797FB9;
  --color-500: #585F9D;
  --color-600: #494D79;
  --color-700: #383B57;
  --color-800: #27293A;
  --color-900: #191A24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-blue: {
    50: '#F4F5FB',
    100: '#E2E4F3',
    200: '#C6CAE6',
    300: '#9EA3D1',
    400: '#797FB9',
    500: '#585F9D',
    600: '#494D79',
    700: '#383B57',
    800: '#27293A',
    900: '#191A24',
  },
}

$base: #424B97;
$base-ink: #FFFFFF;
$base-50: #F4F5FB;
$base-100: #E2E4F3;
$base-200: #C6CAE6;
$base-300: #9EA3D1;
$base-400: #797FB9;
$base-500: #585F9D;
$base-600: #494D79;
$base-700: #383B57;
$base-800: #27293A;
$base-900: #191A24;
$base-hover: #363C7A;
$base-subtle: #C6C9E0;

{
    "color": {
        "base": {
            "value": "#424B97",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F5FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E4F3",
                "type": "color"
            },
            "200": {
                "value": "#C6CAE6",
                "type": "color"
            },
            "300": {
                "value": "#9EA3D1",
                "type": "color"
            },
            "400": {
                "value": "#797FB9",
                "type": "color"
            },
            "500": {
                "value": "#585F9D",
                "type": "color"
            },
            "600": {
                "value": "#494D79",
                "type": "color"
            },
            "700": {
                "value": "#383B57",
                "type": "color"
            },
            "800": {
                "value": "#27293A",
                "type": "color"
            },
            "900": {
                "value": "#191A24",
                "type": "color"
            }
        }
    }
}