What color is #1D5DC3?

#1D5DC3 is a medium, vivid blue. In RGB it is rgb(29, 93, 195), and in HSL hsl(217, 74%, 44%).

Is #1D5DC3 accessible as text?

On white, #1D5DC3 has a contrast ratio of 6.17:1 (passes WCAG AA for body text); on black it is 3.41:1 (fails). For text placed on #1D5DC3, use white for the best readability.

What is the closest Tailwind color to #1D5DC3?

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

What colors go well with #1D5DC3?

#1D5DC3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #C3841D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1D5DC3 below.

Is #1D5DC3 good for buttons?

#1D5DC3 works well for buttons and highlights, but use white text on #1D5DC3 — black text only reaches 3.41:1, below the 4.5:1 needed for normal-size labels.

Is #1D5DC3 the same as CSS royalblue?

No — #1D5DC3 is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#1D5DC3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1D5DC3

Not just a swatch — here's how #1D5DC3 works with other colors. Named schemes with #1D5DC3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1D5DC3 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 #1D5DC3 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4A84E2

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 #1D5DC3 Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

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 #1D5DC3 Surface #F6E5D8 Anchor #5A2144 Accent #E4C2CA 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 #1D5DC3 Secondary #778DB1 Support #9D8F88 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 #1D5DC3 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 7/100

Cool

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 53/100

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 32/100

Low

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 47/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 95/100

Very high

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

Surface fit 8/100

Very low

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

Print safety 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #1D5DC3

For UI

For branding

For interior

For fashion

People also use #1D5DC3 with

Medium Turquoise Egyptian Blue Dark Goldenrod 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 6.2:1. Use

Subtle surface Use #D3DFF2 for cards and hover fills. Tint 80

Avoid beside #1D25C3 — 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 #1D5DC3 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: #1D5DC3;
  --color-base-rgb: 29 93 195;
  --color-base-oklch: oklch(50.0% 0.172 259.8);
  --color-50: #F1F6FE;
  --color-100: #DBE7FB;
  --color-200: #B8CFF4;
  --color-300: #88ACE7;
  --color-400: #5C8BD6;
  --color-500: #396BBC;
  --color-600: #33568F;
  --color-700: #2A4065;
  --color-800: #1F2C42;
  --color-900: #151C29;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  denim-blue: {
    50: '#F1F6FE',
    100: '#DBE7FB',
    200: '#B8CFF4',
    300: '#88ACE7',
    400: '#5C8BD6',
    500: '#396BBC',
    600: '#33568F',
    700: '#2A4065',
    800: '#1F2C42',
    900: '#151C29',
  },
}

$base: #1D5DC3;
$base-ink: #FFFFFF;
$base-50: #F1F6FE;
$base-100: #DBE7FB;
$base-200: #B8CFF4;
$base-300: #88ACE7;
$base-400: #5C8BD6;
$base-500: #396BBC;
$base-600: #33568F;
$base-700: #2A4065;
$base-800: #1F2C42;
$base-900: #151C29;
$base-hover: #174A9C;
$base-subtle: #BCCFEC;

{
    "color": {
        "base": {
            "value": "#1D5DC3",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F6FE",
                "type": "color"
            },
            "100": {
                "value": "#DBE7FB",
                "type": "color"
            },
            "200": {
                "value": "#B8CFF4",
                "type": "color"
            },
            "300": {
                "value": "#88ACE7",
                "type": "color"
            },
            "400": {
                "value": "#5C8BD6",
                "type": "color"
            },
            "500": {
                "value": "#396BBC",
                "type": "color"
            },
            "600": {
                "value": "#33568F",
                "type": "color"
            },
            "700": {
                "value": "#2A4065",
                "type": "color"
            },
            "800": {
                "value": "#1F2C42",
                "type": "color"
            },
            "900": {
                "value": "#151C29",
                "type": "color"
            }
        }
    }
}

Palettes built on #1D5DC3

Color Lab

Pairs with #1D5DC3

UI roles & guardrails

In real applications

Scales

Every model

Export