What color is #455271?

#455271 is a dark, muted blue. In RGB it is rgb(69, 82, 113), and in HSL hsl(222, 24%, 36%).

Is #455271 accessible as text?

On white, #455271 has a contrast ratio of 7.78:1 (passes WCAG AA for body text); on black it is 2.70:1 (fails). For text placed on #455271, use white for the best readability.

What is the closest Tailwind color to #455271?

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

What colors go well with #455271?

#455271 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #726546. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #455271 below.

Is #455271 good for buttons?

#455271 works well for buttons and highlights, but use white text on #455271 — black text only reaches 2.70:1, below the 4.5:1 needed for normal-size labels.

Is #455271 the same as CSS darkslategray?

No — #455271 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#455271 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #455271

Not just a swatch — here's how #455271 works with other colors. Named schemes with #455271 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #455271 Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Iron Gray 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 #455271 Secondary #AEB4B8 Surface #F1F2F0 Support #7D92A7 Anchor #2E3236

Iron Gray 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 #455271 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #687492

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

Vintage Leather Lead · 5 colors

Lead #455271 Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

Iron Gray 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 #455271 Secondary #757A86 Support #9D8F88 Ink #18140F

Iron Gray 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 Iron Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #455271 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 37/100

Cool

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

Softness 43/100

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 43/100

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 21/100

Low

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

UI accent fit 64/100

High

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

Surface fit 40/100

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 #455271

For UI

For branding

For interior

For fashion

People also use #455271 with

Slate Gray Ultra Violet 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 7.8:1. Use

Subtle surface Use #D9DCE4 for cards and hover fills. Tint 80

Avoid beside #474672 — 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 #455271 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: #455271;
  --color-base-rgb: 69 82 113;
  --color-base-oklch: oklch(44.1% 0.054 266.7);
  --color-50: #F5F7F9;
  --color-100: #E5E9F0;
  --color-200: #CCD2E0;
  --color-300: #A8B1C7;
  --color-400: #8591AD;
  --color-500: #657290;
  --color-600: #525B70;
  --color-700: #3E4451;
  --color-800: #2B2E36;
  --color-900: #1B1D22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  iron-gray: {
    50: '#F5F7F9',
    100: '#E5E9F0',
    200: '#CCD2E0',
    300: '#A8B1C7',
    400: '#8591AD',
    500: '#657290',
    600: '#525B70',
    700: '#3E4451',
    800: '#2B2E36',
    900: '#1B1D22',
  },
}

$base: #455271;
$base-ink: #FFFFFF;
$base-50: #F5F7F9;
$base-100: #E5E9F0;
$base-200: #CCD2E0;
$base-300: #A8B1C7;
$base-400: #8591AD;
$base-500: #657290;
$base-600: #525B70;
$base-700: #3E4451;
$base-800: #2B2E36;
$base-900: #1B1D22;
$base-hover: #38425B;
$base-subtle: #C5CAD7;

{
    "color": {
        "base": {
            "value": "#455271",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F7F9",
                "type": "color"
            },
            "100": {
                "value": "#E5E9F0",
                "type": "color"
            },
            "200": {
                "value": "#CCD2E0",
                "type": "color"
            },
            "300": {
                "value": "#A8B1C7",
                "type": "color"
            },
            "400": {
                "value": "#8591AD",
                "type": "color"
            },
            "500": {
                "value": "#657290",
                "type": "color"
            },
            "600": {
                "value": "#525B70",
                "type": "color"
            },
            "700": {
                "value": "#3E4451",
                "type": "color"
            },
            "800": {
                "value": "#2B2E36",
                "type": "color"
            },
            "900": {
                "value": "#1B1D22",
                "type": "color"
            }
        }
    }
}

Palettes built on #455271

Color Lab

Pairs with #455271

UI roles & guardrails

In real applications

Scales

Every model

Export