What color is #1F2842?

#1F2842 is a dark blue. In RGB it is rgb(31, 40, 66), and in HSL hsl(225, 36%, 19%).

Is #1F2842 accessible as text?

On white, #1F2842 has a contrast ratio of 14.58:1 (passes WCAG AA for body text); on black it is 1.44:1 (fails). For text placed on #1F2842, use white for the best readability.

What is the closest Tailwind color to #1F2842?

The nearest Tailwind CSS token is sky-950 (#052F4A).

What colors go well with #1F2842?

#1F2842 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #42391F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1F2842 below.

Is #1F2842 good for buttons?

#1F2842 works well for buttons and highlights, but use white text on #1F2842 — black text only reaches 1.44:1, below the 4.5:1 needed for normal-size labels.

Is #1F2842 the same as CSS midnightblue?

No — #1F2842 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#1F2842 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1F2842

Not just a swatch — here's how #1F2842 works with other colors. Named schemes with #1F2842 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1F2842 Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Prussian 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 #1F2842 Secondary #AEB4B8 Surface #F1F2F0 Support #7D92A7 Anchor #2E3236

Prussian 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 #1F2842 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #3E4761

Prussian 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 Prussian Blue.

Vintage Leather Lead · 5 colors

Lead #1F2842 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #58223A

Prussian 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 #1F2842 Secondary #494D57 Support #9D8F88 Ink #18140F

Prussian 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 Prussian Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #1F2842 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 38/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 71/100

High

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

Brand distinctiveness 19/100

Very low

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

UI accent fit 25/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 91/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1F2842

For UI

For branding

For interior

For fashion

People also use #1F2842 with

Dark Slate Gray Russian Violet Espresso 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 14.6:1. Use

Subtle surface Use #CBD0E0 for cards and hover fills. Tint 80

Avoid beside #221F42 — 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 #1F2842 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: #1F2842;
  --color-base-rgb: 31 40 66;
  --color-base-oklch: oklch(28.2% 0.050 268.6);
  --color-50: #F4F6FA;
  --color-100: #E3E7F2;
  --color-200: #C8CFE5;
  --color-300: #A0ACCF;
  --color-400: #7B8AB7;
  --color-500: #5B6B9A;
  --color-600: #4A5677;
  --color-700: #394056;
  --color-800: #282C39;
  --color-900: #1A1C23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F4F6FA',
    100: '#E3E7F2',
    200: '#C8CFE5',
    300: '#A0ACCF',
    400: '#7B8AB7',
    500: '#5B6B9A',
    600: '#4A5677',
    700: '#394056',
    800: '#282C39',
    900: '#1A1C23',
  },
}

$base: #1F2842;
$base-ink: #FFFFFF;
$base-50: #F4F6FA;
$base-100: #E3E7F2;
$base-200: #C8CFE5;
$base-300: #A0ACCF;
$base-400: #7B8AB7;
$base-500: #5B6B9A;
$base-600: #4A5677;
$base-700: #394056;
$base-800: #282C39;
$base-900: #1A1C23;
$base-hover: #192035;
$base-subtle: #B0B9D2;

{
    "color": {
        "base": {
            "value": "#1F2842",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E3E7F2",
                "type": "color"
            },
            "200": {
                "value": "#C8CFE5",
                "type": "color"
            },
            "300": {
                "value": "#A0ACCF",
                "type": "color"
            },
            "400": {
                "value": "#7B8AB7",
                "type": "color"
            },
            "500": {
                "value": "#5B6B9A",
                "type": "color"
            },
            "600": {
                "value": "#4A5677",
                "type": "color"
            },
            "700": {
                "value": "#394056",
                "type": "color"
            },
            "800": {
                "value": "#282C39",
                "type": "color"
            },
            "900": {
                "value": "#1A1C23",
                "type": "color"
            }
        }
    }
}