What color is #0D3C87?

#0D3C87 is a dark, vivid blue. In RGB it is rgb(13, 60, 135), and in HSL hsl(217, 82%, 29%).

Is #0D3C87 accessible as text?

On white, #0D3C87 has a contrast ratio of 10.43:1 (passes WCAG AA for body text); on black it is 2.01:1 (fails). For text placed on #0D3C87, use white for the best readability.

What is the closest Tailwind color to #0D3C87?

The nearest Tailwind CSS token is blue-900 (#1C398E).

What colors go well with #0D3C87?

#0D3C87 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #87580D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0D3C87 below.

Is #0D3C87 good for buttons?

#0D3C87 works well for buttons and highlights, but use white text on #0D3C87 — black text only reaches 2.01:1, below the 4.5:1 needed for normal-size labels.

Is #0D3C87 the same as CSS darkslateblue?

No — #0D3C87 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#0D3C87 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0D3C87

Not just a swatch — here's how #0D3C87 works with other colors. Named schemes with #0D3C87 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #0D3C87 Anchor #141210 Accent #ADAE53 Secondary #232933 Surface #F0EEE3

Classic Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #0D3C87 Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #1B1A4F

Classic Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Classic Blue.

Coastal Morning Lead · 5 colors

Lead #0D3C87 Accent #A5C4C1 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.

Vintage Leather Lead · 5 colors

Lead #0D3C87 Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

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 #F6F4EF Accent #0D3C87 Secondary #586883 Support #9D8F88 Ink #16140F

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.

Build a working theme in the generator →

Color Lab

How #0D3C87 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 15/100

Cool

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

Softness 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 64/100

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 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 67/100

High

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

Brand distinctiveness 52/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 66/100

High

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

Surface fit 20/100

Very low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 74/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0D3C87

For UI

For branding

For interior

For fashion

People also use #0D3C87 with

Persian Green Midnight Blue Russet 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 10.4:1. Use

Subtle surface Use #C5D6F0 for cards and hover fills. Tint 80

Avoid beside #0D1387 — 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 #0D3C87 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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: #0D3C87;
  --color-base-rgb: 13 60 135;
  --color-base-oklch: oklch(37.5% 0.135 260.0);
  --color-50: #F0F6FE;
  --color-100: #D9E6FC;
  --color-200: #B5CEF8;
  --color-300: #83ABED;
  --color-400: #5589DD;
  --color-500: #326AC3;
  --color-600: #2E5594;
  --color-700: #264069;
  --color-800: #1D2C44;
  --color-900: #141C2A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F0F6FE',
    100: '#D9E6FC',
    200: '#B5CEF8',
    300: '#83ABED',
    400: '#5589DD',
    500: '#326AC3',
    600: '#2E5594',
    700: '#264069',
    800: '#1D2C44',
    900: '#141C2A',
  },
}

$base: #0D3C87;
$base-ink: #FFFFFF;
$base-50: #F0F6FE;
$base-100: #D9E6FC;
$base-200: #B5CEF8;
$base-300: #83ABED;
$base-400: #5589DD;
$base-500: #326AC3;
$base-600: #2E5594;
$base-700: #264069;
$base-800: #1D2C44;
$base-900: #141C2A;
$base-hover: #0B306C;
$base-subtle: #A7C1EB;

{
    "color": {
        "base": {
            "value": "#0D3C87",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D9E6FC",
                "type": "color"
            },
            "200": {
                "value": "#B5CEF8",
                "type": "color"
            },
            "300": {
                "value": "#83ABED",
                "type": "color"
            },
            "400": {
                "value": "#5589DD",
                "type": "color"
            },
            "500": {
                "value": "#326AC3",
                "type": "color"
            },
            "600": {
                "value": "#2E5594",
                "type": "color"
            },
            "700": {
                "value": "#264069",
                "type": "color"
            },
            "800": {
                "value": "#1D2C44",
                "type": "color"
            },
            "900": {
                "value": "#141C2A",
                "type": "color"
            }
        }
    }
}

Palettes built on #0D3C87

Color Lab

Pairs with #0D3C87

UI roles & guardrails

In real applications

Scales

Every model

Export