What color is #015F8A?

#015F8A is a dark, vivid cyan-blue. In RGB it is rgb(1, 95, 138), and in HSL hsl(199, 99%, 27%).

Is #015F8A accessible as text?

On white, #015F8A has a contrast ratio of 6.99:1 (passes WCAG AA for body text); on black it is 3.01:1 (fails). For text placed on #015F8A, use white for the best readability.

What is the closest Tailwind color to #015F8A?

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

What colors go well with #015F8A?

#015F8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #892C01. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #015F8A below.

Is #015F8A good for buttons?

#015F8A works well for buttons and highlights, but use white text on #015F8A — black text only reaches 3.01:1, below the 4.5:1 needed for normal-size labels.

Is #015F8A the same as CSS darkslategray?

No — #015F8A is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#015F8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #015F8A

Not just a swatch — here's how #015F8A works with other colors. Named schemes with #015F8A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #015F8A Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Lapis Lazuli 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 #015F8A Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4082AA

Lapis Lazuli is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Lapis Lazuli.

Vintage Leather Lead · 5 colors

Lead #015F8A Secondary #7F4439 Surface #E2DDC0 Accent #385245 Anchor #57233C

Lapis Lazuli 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 #015F8A Surface #EEE9D6 Anchor #592246 Accent #E4C2CC Secondary #322B30

Lapis Lazuli 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 #015F8A Secondary #6D8494 Support #969386 Ink #16140F

Lapis Lazuli 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 Lapis Lazuli carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #015F8A 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 20/100

Cool

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

Softness 40/100

Low

Middle-weight — neither delicate nor heavy.

Depth 54/100

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 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 60/100

High

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

Brand distinctiveness 28/100

Low

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

UI accent fit 87/100

Very high

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

Surface fit 24/100

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 #015F8A

For UI

For branding

For interior

For fashion

People also use #015F8A with

Jungle Green Phthalo Blue Walnut Brown Platinum Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

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 7.0:1. Use

Subtle surface Use #BFE4F4 for cards and hover fills. Tint 80

Avoid beside #013089 — 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 #015F8A at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #015F8A;
  --color-base-rgb: 1 95 138;
  --color-base-oklch: oklch(46.1% 0.102 238.0);
  --color-50: #F0FAFE;
  --color-100: #D8F1FD;
  --color-200: #B1E4FC;
  --color-300: #78CFF7;
  --color-400: #47B7EB;
  --color-500: #239AD2;
  --color-600: #23779F;
  --color-700: #1F566F;
  --color-800: #193948;
  --color-900: #11242C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F0FAFE',
    100: '#D8F1FD',
    200: '#B1E4FC',
    300: '#78CFF7',
    400: '#47B7EB',
    500: '#239AD2',
    600: '#23779F',
    700: '#1F566F',
    800: '#193948',
    900: '#11242C',
  },
}

$base: #015F8A;
$base-ink: #FFFFFF;
$base-50: #F0FAFE;
$base-100: #D8F1FD;
$base-200: #B1E4FC;
$base-300: #78CFF7;
$base-400: #47B7EB;
$base-500: #239AD2;
$base-600: #23779F;
$base-700: #1F566F;
$base-800: #193948;
$base-900: #11242C;
$base-hover: #014B6E;
$base-subtle: #9DD7F1;

{
    "color": {
        "base": {
            "value": "#015F8A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FAFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F1FD",
                "type": "color"
            },
            "200": {
                "value": "#B1E4FC",
                "type": "color"
            },
            "300": {
                "value": "#78CFF7",
                "type": "color"
            },
            "400": {
                "value": "#47B7EB",
                "type": "color"
            },
            "500": {
                "value": "#239AD2",
                "type": "color"
            },
            "600": {
                "value": "#23779F",
                "type": "color"
            },
            "700": {
                "value": "#1F566F",
                "type": "color"
            },
            "800": {
                "value": "#193948",
                "type": "color"
            },
            "900": {
                "value": "#11242C",
                "type": "color"
            }
        }
    }
}