What color is #004285?

#004285 is a dark, vivid blue. In RGB it is rgb(0, 66, 133), and in HSL hsl(210, 100%, 26%).

Is #004285 accessible as text?

On white, #004285 has a contrast ratio of 9.92:1 (passes WCAG AA for body text); on black it is 2.12:1 (fails). For text placed on #004285, use white for the best readability.

What is the closest Tailwind color to #004285?

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

What colors go well with #004285?

#004285 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #854200. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #004285 below.

Is #004285 good for buttons?

#004285 works well for buttons and highlights, but use white text on #004285 — black text only reaches 2.12:1, below the 4.5:1 needed for normal-size labels.

Is #004285 the same as CSS darkslateblue?

No — #004285 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#004285 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #004285

Not just a swatch — here's how #004285 works with other colors. Named schemes with #004285 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #004285 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Classic Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Tech Product Signal · 5 colors

Signal #004285 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3366A4

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 #004285 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57233B

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.

Berry & Cream Lead · 5 colors

Lead #004285 Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CA Secondary #322B2F

Classic Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #004285 Secondary #596C84 Support #9D8F89 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 #004285 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 16/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 62/100

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 37/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 69/100

High

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

Surface fit 21/100

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 #004285

For UI

For branding

For interior

For fashion

People also use #004285 with

Light Sea Green Dark Blue Sepia 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 9.9:1. Use

Subtle surface Use #BED9F4 for cards and hover fills. Tint 80

Avoid beside #001685 — 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 #004285 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: #004285;
  --color-base-rgb: 0 66 133;
  --color-base-oklch: oklch(38.5% 0.127 255.0);
  --color-50: #F0F7FE;
  --color-100: #D8EBFD;
  --color-200: #B1D6FC;
  --color-300: #77B8F8;
  --color-400: #4699EC;
  --color-500: #227AD2;
  --color-600: #23619F;
  --color-700: #1F4770;
  --color-800: #183048;
  --color-900: #111F2C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F0F7FE',
    100: '#D8EBFD',
    200: '#B1D6FC',
    300: '#77B8F8',
    400: '#4699EC',
    500: '#227AD2',
    600: '#23619F',
    700: '#1F4770',
    800: '#183048',
    900: '#111F2C',
  },
}

$base: #004285;
$base-ink: #FFFFFF;
$base-50: #F0F7FE;
$base-100: #D8EBFD;
$base-200: #B1D6FC;
$base-300: #77B8F8;
$base-400: #4699EC;
$base-500: #227AD2;
$base-600: #23619F;
$base-700: #1F4770;
$base-800: #183048;
$base-900: #111F2C;
$base-hover: #00356A;
$base-subtle: #9BC6F1;

{
    "color": {
        "base": {
            "value": "#004285",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F7FE",
                "type": "color"
            },
            "100": {
                "value": "#D8EBFD",
                "type": "color"
            },
            "200": {
                "value": "#B1D6FC",
                "type": "color"
            },
            "300": {
                "value": "#77B8F8",
                "type": "color"
            },
            "400": {
                "value": "#4699EC",
                "type": "color"
            },
            "500": {
                "value": "#227AD2",
                "type": "color"
            },
            "600": {
                "value": "#23619F",
                "type": "color"
            },
            "700": {
                "value": "#1F4770",
                "type": "color"
            },
            "800": {
                "value": "#183048",
                "type": "color"
            },
            "900": {
                "value": "#111F2C",
                "type": "color"
            }
        }
    }
}

Palettes built on #004285

Color Lab

Pairs with #004285

UI roles & guardrails

In real applications

Scales

Every model

Export