What color is #435377?

#435377 is a dark, muted blue. In RGB it is rgb(67, 83, 119), and in HSL hsl(222, 28%, 36%).

Is #435377 accessible as text?

On white, #435377 has a contrast ratio of 7.66:1 (passes WCAG AA for body text); on black it is 2.74:1 (fails). For text placed on #435377, use white for the best readability.

What is the closest Tailwind color to #435377?

The nearest Tailwind CSS token is mauve-600 (#594C5B).

What colors go well with #435377?

#435377 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #766642. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #435377 below.

Is #435377 good for buttons?

#435377 works well for buttons and highlights, but use white text on #435377 — black text only reaches 2.74:1, below the 4.5:1 needed for normal-size labels.

Is #435377 the same as CSS darkslategray?

No — #435377 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#435377 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #435377

Not just a swatch — here's how #435377 works with other colors. Named schemes with #435377 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #435377 Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Classic Blue 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 #435377 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A7 Anchor #2E3236

Classic Blue 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 #435377 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #667598

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

Vintage Leather Lead · 5 colors

Lead #435377 Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

Classic 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 #435377 Secondary #757C89 Support #9D8F88 Ink #18140F

Classic 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 Classic Blue carrying the quiet middle.

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Color Lab

How #435377 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 42/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 54/100

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 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 59/100

Moderate

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

Brand distinctiveness 24/100

Low

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

UI accent fit 69/100

High

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

Surface fit 37/100

Low

Usable as a tinted surface in measured doses.

Print safety 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #435377

For UI

For branding

For interior

For fashion

People also use #435377 with

Slate Gray 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 7.7:1. Use

Subtle surface Use #D8DCE5 for cards and hover fills. Tint 80

Avoid beside #444276 — 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 #435377 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: #435377;
  --color-base-rgb: 67 83 119;
  --color-base-oklch: oklch(44.5% 0.063 265.5);
  --color-50: #F5F6FA;
  --color-100: #E5E8F1;
  --color-200: #CBD2E2;
  --color-300: #A6B0CA;
  --color-400: #8290B0;
  --color-500: #627193;
  --color-600: #4F5A72;
  --color-700: #3C4353;
  --color-800: #2A2E37;
  --color-900: #1B1D22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F5F6FA',
    100: '#E5E8F1',
    200: '#CBD2E2',
    300: '#A6B0CA',
    400: '#8290B0',
    500: '#627193',
    600: '#4F5A72',
    700: '#3C4353',
    800: '#2A2E37',
    900: '#1B1D22',
  },
}

$base: #435377;
$base-ink: #FFFFFF;
$base-50: #F5F6FA;
$base-100: #E5E8F1;
$base-200: #CBD2E2;
$base-300: #A6B0CA;
$base-400: #8290B0;
$base-500: #627193;
$base-600: #4F5A72;
$base-700: #3C4353;
$base-800: #2A2E37;
$base-900: #1B1D22;
$base-hover: #35415E;
$base-subtle: #C4CAD8;

{
    "color": {
        "base": {
            "value": "#435377",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E5E8F1",
                "type": "color"
            },
            "200": {
                "value": "#CBD2E2",
                "type": "color"
            },
            "300": {
                "value": "#A6B0CA",
                "type": "color"
            },
            "400": {
                "value": "#8290B0",
                "type": "color"
            },
            "500": {
                "value": "#627193",
                "type": "color"
            },
            "600": {
                "value": "#4F5A72",
                "type": "color"
            },
            "700": {
                "value": "#3C4353",
                "type": "color"
            },
            "800": {
                "value": "#2A2E37",
                "type": "color"
            },
            "900": {
                "value": "#1B1D22",
                "type": "color"
            }
        }
    }
}

Palettes built on #435377

Color Lab

Pairs with #435377

UI roles & guardrails

In real applications

Scales

Every model

Export