What color is #43597F?

#43597F is a dark, muted blue. In RGB it is rgb(67, 89, 127), and in HSL hsl(218, 31%, 38%).

Is #43597F accessible as text?

On white, #43597F has a contrast ratio of 7.06:1 (passes WCAG AA for body text); on black it is 2.97:1 (fails). For text placed on #43597F, use white for the best readability.

What is the closest Tailwind color to #43597F?

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

What colors go well with #43597F?

#43597F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7F6943. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #43597F below.

Is #43597F good for buttons?

#43597F works well for buttons and highlights, but use white text on #43597F — black text only reaches 2.97:1, below the 4.5:1 needed for normal-size labels.

Is #43597F the same as CSS darkslateblue?

No — #43597F is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#43597F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #43597F

Not just a swatch — here's how #43597F works with other colors. Named schemes with #43597F in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #43597F Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Lapis Lazuli 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 #43597F Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #43597F Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #677CA0

Lapis Lazuli is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Lapis Lazuli.

Vintage Leather Lead · 5 colors

Lead #43597F Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

Lapis Lazuli 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 #43597F Secondary #798290 Support #9D8F88 Ink #18140F

Lapis Lazuli 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 Lapis Lazuli carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #43597F 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 33/100

Cool

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

Softness 43/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 52/100

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 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 58/100

Moderate

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

Brand distinctiveness 18/100

Very low

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

UI accent fit 75/100

High

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

Surface fit 34/100

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 #43597F

For UI

For branding

For interior

For fashion

People also use #43597F with

Cadet Blue Dark Slate Blue Raw Umber Gainsboro Charcoal

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 7.1:1. Use

Subtle surface Use #D8DDE6 for cards and hover fills. Tint 80

Avoid beside #43457F — 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 #43597F at work across the surfaces designers actually ship.

Website / UI

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Build faster.

A working theme, generated in seconds.

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: #43597F;
  --color-base-rgb: 67 89 127;
  --color-base-oklch: oklch(46.3% 0.068 261.0);
  --color-50: #F5F7FA;
  --color-100: #E4E9F1;
  --color-200: #CAD3E3;
  --color-300: #A4B2CC;
  --color-400: #7F92B3;
  --color-500: #5F7396;
  --color-600: #4E5C74;
  --color-700: #3B4454;
  --color-800: #292E38;
  --color-900: #1A1D23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F5F7FA',
    100: '#E4E9F1',
    200: '#CAD3E3',
    300: '#A4B2CC',
    400: '#7F92B3',
    500: '#5F7396',
    600: '#4E5C74',
    700: '#3B4454',
    800: '#292E38',
    900: '#1A1D23',
  },
}

$base: #43597F;
$base-ink: #FFFFFF;
$base-50: #F5F7FA;
$base-100: #E4E9F1;
$base-200: #CAD3E3;
$base-300: #A4B2CC;
$base-400: #7F92B3;
$base-500: #5F7396;
$base-600: #4E5C74;
$base-700: #3B4454;
$base-800: #292E38;
$base-900: #1A1D23;
$base-hover: #354766;
$base-subtle: #C4CDDB;

{
    "color": {
        "base": {
            "value": "#43597F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F7FA",
                "type": "color"
            },
            "100": {
                "value": "#E4E9F1",
                "type": "color"
            },
            "200": {
                "value": "#CAD3E3",
                "type": "color"
            },
            "300": {
                "value": "#A4B2CC",
                "type": "color"
            },
            "400": {
                "value": "#7F92B3",
                "type": "color"
            },
            "500": {
                "value": "#5F7396",
                "type": "color"
            },
            "600": {
                "value": "#4E5C74",
                "type": "color"
            },
            "700": {
                "value": "#3B4454",
                "type": "color"
            },
            "800": {
                "value": "#292E38",
                "type": "color"
            },
            "900": {
                "value": "#1A1D23",
                "type": "color"
            }
        }
    }
}

Palettes built on #43597F

Color Lab

Pairs with #43597F

UI roles & guardrails

In real applications

Scales

Every model

Export