What color is #0D64AB?

#0D64AB is a dark, vivid cyan-blue. In RGB it is rgb(13, 100, 171), and in HSL hsl(207, 86%, 36%).

Is #0D64AB accessible as text?

On white, #0D64AB has a contrast ratio of 6.13:1 (passes WCAG AA for body text); on black it is 3.43:1 (fails). For text placed on #0D64AB, use white for the best readability.

What is the closest Tailwind color to #0D64AB?

The nearest Tailwind CSS token is sky-700 (#0069A8).

What colors go well with #0D64AB?

#0D64AB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AB540D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0D64AB below.

Is #0D64AB good for buttons?

#0D64AB works well for buttons and highlights, but use white text on #0D64AB — black text only reaches 3.43:1, below the 4.5:1 needed for normal-size labels.

Is #0D64AB the same as CSS royalblue?

No — #0D64AB is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#0D64AB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0D64AB

Not just a swatch — here's how #0D64AB works with other colors. Named schemes with #0D64AB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0D64AB Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

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 #0D64AB Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4689CB

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 #0D64AB Secondary #7F4538 Surface #E1DDC0 Accent #375245 Anchor #57233B

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 #0D64AB Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CB Secondary #322B2F

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 #0D64AB Secondary #758DA7 Support #959386 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 #0D64AB 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 12/100

Cool

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

Softness 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 52/100

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 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 56/100

Moderate

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

Brand distinctiveness 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 98/100

Very high

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

Surface fit 12/100

Very low

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

Print safety 70/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0D64AB

For UI

For branding

For interior

For fashion

People also use #0D64AB with

Robin Egg Blue Zaffre Sienna Gainsboro 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 6.1:1. Use

Subtle surface Use #CAE0F3 for cards and hover fills. Tint 80

Avoid beside #0D2FAB — 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 #0D64AB 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: #0D64AB;
  --color-base-rgb: 13 100 171;
  --color-base-oklch: oklch(49.5% 0.135 250.3);
  --color-50: #F0F8FE;
  --color-100: #D8ECFD;
  --color-200: #B3DAF9;
  --color-300: #80BDEF;
  --color-400: #52A0E0;
  --color-500: #2F82C6;
  --color-600: #2B6696;
  --color-700: #254B6A;
  --color-800: #1C3345;
  --color-900: #13202A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F0F8FE',
    100: '#D8ECFD',
    200: '#B3DAF9',
    300: '#80BDEF',
    400: '#52A0E0',
    500: '#2F82C6',
    600: '#2B6696',
    700: '#254B6A',
    800: '#1C3345',
    900: '#13202A',
  },
}

$base: #0D64AB;
$base-ink: #FFFFFF;
$base-50: #F0F8FE;
$base-100: #D8ECFD;
$base-200: #B3DAF9;
$base-300: #80BDEF;
$base-400: #52A0E0;
$base-500: #2F82C6;
$base-600: #2B6696;
$base-700: #254B6A;
$base-800: #1C3345;
$base-900: #13202A;
$base-hover: #0A5089;
$base-subtle: #AED1EE;

{
    "color": {
        "base": {
            "value": "#0D64AB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F8FE",
                "type": "color"
            },
            "100": {
                "value": "#D8ECFD",
                "type": "color"
            },
            "200": {
                "value": "#B3DAF9",
                "type": "color"
            },
            "300": {
                "value": "#80BDEF",
                "type": "color"
            },
            "400": {
                "value": "#52A0E0",
                "type": "color"
            },
            "500": {
                "value": "#2F82C6",
                "type": "color"
            },
            "600": {
                "value": "#2B6696",
                "type": "color"
            },
            "700": {
                "value": "#254B6A",
                "type": "color"
            },
            "800": {
                "value": "#1C3345",
                "type": "color"
            },
            "900": {
                "value": "#13202A",
                "type": "color"
            }
        }
    }
}

Palettes built on #0D64AB

Color Lab

Pairs with #0D64AB

UI roles & guardrails

In real applications

Scales

Every model

Export