What color is #015385?

#015385 is a dark, vivid cyan-blue. In RGB it is rgb(1, 83, 133), and in HSL hsl(203, 99%, 26%).

Is #015385 accessible as text?

On white, #015385 has a contrast ratio of 8.15:1 (passes WCAG AA for body text); on black it is 2.58:1 (fails). For text placed on #015385, use white for the best readability.

What is the closest Tailwind color to #015385?

The nearest Tailwind CSS token is sky-800 (#00598A).

What colors go well with #015385?

#015385 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #843301. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #015385 below.

Is #015385 good for buttons?

#015385 works well for buttons and highlights, but use white text on #015385 — black text only reaches 2.58:1, below the 4.5:1 needed for normal-size labels.

Is #015385 the same as CSS darkslateblue?

No — #015385 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#015385 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #015385

Not just a swatch — here's how #015385 works with other colors. Named schemes with #015385 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #015385 Accent #A5C4C0 Surface #DEDBBF Secondary #9AA0A0 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 #015385 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3B76A5

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 #015385 Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233C

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 #015385 Surface #EDE9D6 Anchor #5A2246 Accent #E4C2CB Secondary #322B30

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 #015385 Secondary #65798C Support #969386 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 #015385 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 19/100

Cool

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

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 57/100

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 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 64/100

High

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

Brand distinctiveness 29/100

Low

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

UI accent fit 80/100

High

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

Surface fit 25/100

Low

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

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #015385

For UI

For branding

For interior

For fashion

People also use #015385 with

Jungle Green Navy Blue Walnut Brown 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 8.1:1. Use

Subtle surface Use #BEE0F4 for cards and hover fills. Tint 80

Avoid beside #012684 — 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 #015385 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: #015385;
  --color-base-rgb: 1 83 133;
  --color-base-oklch: oklch(42.7% 0.107 244.9);
  --color-50: #F0F9FE;
  --color-100: #D8EFFD;
  --color-200: #B1DFFC;
  --color-300: #78C7F7;
  --color-400: #47ACEB;
  --color-500: #238FD2;
  --color-600: #236F9F;
  --color-700: #1F516F;
  --color-800: #193648;
  --color-900: #11222C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F0F9FE',
    100: '#D8EFFD',
    200: '#B1DFFC',
    300: '#78C7F7',
    400: '#47ACEB',
    500: '#238FD2',
    600: '#236F9F',
    700: '#1F516F',
    800: '#193648',
    900: '#11222C',
  },
}

$base: #015385;
$base-ink: #FFFFFF;
$base-50: #F0F9FE;
$base-100: #D8EFFD;
$base-200: #B1DFFC;
$base-300: #78C7F7;
$base-400: #47ACEB;
$base-500: #238FD2;
$base-600: #236F9F;
$base-700: #1F516F;
$base-800: #193648;
$base-900: #11222C;
$base-hover: #01416A;
$base-subtle: #9CD0F1;

{
    "color": {
        "base": {
            "value": "#015385",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F9FE",
                "type": "color"
            },
            "100": {
                "value": "#D8EFFD",
                "type": "color"
            },
            "200": {
                "value": "#B1DFFC",
                "type": "color"
            },
            "300": {
                "value": "#78C7F7",
                "type": "color"
            },
            "400": {
                "value": "#47ACEB",
                "type": "color"
            },
            "500": {
                "value": "#238FD2",
                "type": "color"
            },
            "600": {
                "value": "#236F9F",
                "type": "color"
            },
            "700": {
                "value": "#1F516F",
                "type": "color"
            },
            "800": {
                "value": "#193648",
                "type": "color"
            },
            "900": {
                "value": "#11222C",
                "type": "color"
            }
        }
    }
}

Palettes built on #015385

Color Lab

Pairs with #015385

UI roles & guardrails

In real applications

Scales

Every model

Export