What color is #01283F?

#01283F is a very dark, vivid cyan-blue. In RGB it is rgb(1, 40, 63), and in HSL hsl(202, 97%, 13%).

Is #01283F accessible as text?

On white, #01283F has a contrast ratio of 15.26:1 (passes WCAG AA for body text); on black it is 1.38:1 (fails). For text placed on #01283F, use white for the best readability.

What is the closest Tailwind color to #01283F?

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

What colors go well with #01283F?

#01283F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #411901. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #01283F below.

Is #01283F good for buttons?

#01283F works well for buttons and highlights, but use white text on #01283F — black text only reaches 1.38:1, below the 4.5:1 needed for normal-size labels.

Is #01283F the same as CSS midnightblue?

No — #01283F is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#01283F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #01283F

Not just a swatch — here's how #01283F works with other colors. Named schemes with #01283F in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #01283F Accent #A5C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

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 #01283F Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 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 #01283F Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #27475E

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 #01283F Secondary #7F4439 Surface #E2DDC0 Accent #385245 Anchor #57233C

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 #F6F4EF Accent #01283F Secondary #3F4B53 Support #969386 Ink #16140F

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 #01283F 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 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 71/100

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 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 73/100

High

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

Brand distinctiveness 23/100

Low

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

UI accent fit 23/100

Low

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

Surface fit 50/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #01283F

For UI

For branding

For interior

For fashion

People also use #01283F with

Hunter Green Navy Bistre Platinum 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 15.3:1. Use

Subtle surface Use #B4DBF2 for cards and hover fills. Tint 80

Avoid beside #011441 — 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 #01283F 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: #01283F;
  --color-base-rgb: 1 40 63;
  --color-base-oklch: oklch(26.4% 0.060 240.4);
  --color-50: #F0F9FE;
  --color-100: #D8F0FD;
  --color-200: #B1E0FC;
  --color-300: #79C8F6;
  --color-400: #49AEE9;
  --color-500: #2591D0;
  --color-600: #25719D;
  --color-700: #20526F;
  --color-800: #193748;
  --color-900: #11222C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F0F9FE',
    100: '#D8F0FD',
    200: '#B1E0FC',
    300: '#79C8F6',
    400: '#49AEE9',
    500: '#2591D0',
    600: '#25719D',
    700: '#20526F',
    800: '#193748',
    900: '#11222C',
  },
}

$base: #01283F;
$base-ink: #FFFFFF;
$base-50: #F0F9FE;
$base-100: #D8F0FD;
$base-200: #B1E0FC;
$base-300: #79C8F6;
$base-400: #49AEE9;
$base-500: #2591D0;
$base-600: #25719D;
$base-700: #20526F;
$base-800: #193748;
$base-900: #11222C;
$base-hover: #012134;
$base-subtle: #8BCAEE;

{
    "color": {
        "base": {
            "value": "#01283F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F9FE",
                "type": "color"
            },
            "100": {
                "value": "#D8F0FD",
                "type": "color"
            },
            "200": {
                "value": "#B1E0FC",
                "type": "color"
            },
            "300": {
                "value": "#79C8F6",
                "type": "color"
            },
            "400": {
                "value": "#49AEE9",
                "type": "color"
            },
            "500": {
                "value": "#2591D0",
                "type": "color"
            },
            "600": {
                "value": "#25719D",
                "type": "color"
            },
            "700": {
                "value": "#20526F",
                "type": "color"
            },
            "800": {
                "value": "#193748",
                "type": "color"
            },
            "900": {
                "value": "#11222C",
                "type": "color"
            }
        }
    }
}