What color is #1D64AF?

#1D64AF is a medium, vivid blue. In RGB it is rgb(29, 100, 175), and in HSL hsl(211, 72%, 40%).

Is #1D64AF accessible as text?

On white, #1D64AF has a contrast ratio of 6.01:1 (passes WCAG AA for body text); on black it is 3.49:1 (fails). For text placed on #1D64AF, use white for the best readability.

What is the closest Tailwind color to #1D64AF?

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

What colors go well with #1D64AF?

#1D64AF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AF681D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1D64AF below.

Is #1D64AF good for buttons?

#1D64AF works well for buttons and highlights, but use white text on #1D64AF — black text only reaches 3.49:1, below the 4.5:1 needed for normal-size labels.

Is #1D64AF the same as CSS royalblue?

No — #1D64AF is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#1D64AF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1D64AF

Not just a swatch — here's how #1D64AF works with other colors. Named schemes with #1D64AF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1D64AF Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Denim 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 #1D64AF Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4D89CF

Denim 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 Denim Blue.

Vintage Leather Lead · 5 colors

Lead #1D64AF Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57233B

Denim 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 #1D64AF Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CB Secondary #322B2F

Denim 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 #1D64AF Secondary #788FAA Support #9D8F89 Ink #16140F

Denim 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 Denim Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #1D64AF 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 13/100

Cool

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

Softness 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 51/100

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 55/100

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 99/100

Very high

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

Surface fit 11/100

Very low

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

Print safety 71/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1D64AF

For UI

For branding

For interior

For fashion

People also use #1D64AF with

Medium Turquoise Klein Blue Ginger 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 6.0:1. Use

Subtle surface Use #D1E0F0 for cards and hover fills. Tint 80

Avoid beside #1D33AF — 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 #1D64AF 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: #1D64AF;
  --color-base-rgb: 29 100 175;
  --color-base-oklch: oklch(50.1% 0.137 253.5);
  --color-50: #F1F7FD;
  --color-100: #DBEAFA;
  --color-200: #B9D5F3;
  --color-300: #89B6E6;
  --color-400: #5D97D5;
  --color-500: #3B78BA;
  --color-600: #345F8E;
  --color-700: #2A4664;
  --color-800: #1F3042;
  --color-900: #151E28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  denim-blue: {
    50: '#F1F7FD',
    100: '#DBEAFA',
    200: '#B9D5F3',
    300: '#89B6E6',
    400: '#5D97D5',
    500: '#3B78BA',
    600: '#345F8E',
    700: '#2A4664',
    800: '#1F3042',
    900: '#151E28',
  },
}

$base: #1D64AF;
$base-ink: #FFFFFF;
$base-50: #F1F7FD;
$base-100: #DBEAFA;
$base-200: #B9D5F3;
$base-300: #89B6E6;
$base-400: #5D97D5;
$base-500: #3B78BA;
$base-600: #345F8E;
$base-700: #2A4664;
$base-800: #1F3042;
$base-900: #151E28;
$base-hover: #17508C;
$base-subtle: #B8D0EA;

{
    "color": {
        "base": {
            "value": "#1D64AF",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F7FD",
                "type": "color"
            },
            "100": {
                "value": "#DBEAFA",
                "type": "color"
            },
            "200": {
                "value": "#B9D5F3",
                "type": "color"
            },
            "300": {
                "value": "#89B6E6",
                "type": "color"
            },
            "400": {
                "value": "#5D97D5",
                "type": "color"
            },
            "500": {
                "value": "#3B78BA",
                "type": "color"
            },
            "600": {
                "value": "#345F8E",
                "type": "color"
            },
            "700": {
                "value": "#2A4664",
                "type": "color"
            },
            "800": {
                "value": "#1F3042",
                "type": "color"
            },
            "900": {
                "value": "#151E28",
                "type": "color"
            }
        }
    }
}

Palettes built on #1D64AF

Color Lab

Pairs with #1D64AF

UI roles & guardrails

In real applications

Scales

Every model

Export