What color is #1D65C3?

#1D65C3 is a medium, vivid blue. In RGB it is rgb(29, 101, 195), and in HSL hsl(214, 74%, 44%).

Is #1D65C3 accessible as text?

On white, #1D65C3 has a contrast ratio of 5.67:1 (passes WCAG AA for body text); on black it is 3.70:1 (fails). For text placed on #1D65C3, use white for the best readability.

What is the closest Tailwind color to #1D65C3?

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

What colors go well with #1D65C3?

#1D65C3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #C37B1D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1D65C3 below.

Is #1D65C3 good for buttons?

#1D65C3 works well for buttons and highlights, but use white text on #1D65C3 — black text only reaches 3.70:1, below the 4.5:1 needed for normal-size labels.

Is #1D65C3 the same as CSS royalblue?

No — #1D65C3 is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#1D65C3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1D65C3

Not just a swatch — here's how #1D65C3 works with other colors. Named schemes with #1D65C3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1D65C3 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 #1D65C3 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4D8BE2

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 #1D65C3 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57223B

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 #1D65C3 Surface #EDE9D6 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 #1D65C3 Secondary #7B93B4 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.

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Color Lab

How #1D65C3 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 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 50/100

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 52/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 44/100

Moderate

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 9/100

Very low

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

Print safety 67/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #1D65C3

For UI

For branding

For interior

For fashion

People also use #1D65C3 with

Turquoise Medium Blue Ochre 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 5.7:1. Use

Subtle surface Use #D3E0F2 for cards and hover fills. Tint 80

Avoid beside #1D2EC3 — 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 #1D65C3 at work across the surfaces designers actually ship.

Website / UI

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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: #1D65C3;
  --color-base-rgb: 29 101 195;
  --color-base-oklch: oklch(51.7% 0.163 257.2);
  --color-50: #F1F7FE;
  --color-100: #DBE8FB;
  --color-200: #B8D2F4;
  --color-300: #88B1E7;
  --color-400: #5C91D6;
  --color-500: #3972BC;
  --color-600: #335B8F;
  --color-700: #2A4365;
  --color-800: #1F2E42;
  --color-900: #151D29;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  denim-blue: {
    50: '#F1F7FE',
    100: '#DBE8FB',
    200: '#B8D2F4',
    300: '#88B1E7',
    400: '#5C91D6',
    500: '#3972BC',
    600: '#335B8F',
    700: '#2A4365',
    800: '#1F2E42',
    900: '#151D29',
  },
}

$base: #1D65C3;
$base-ink: #FFFFFF;
$base-50: #F1F7FE;
$base-100: #DBE8FB;
$base-200: #B8D2F4;
$base-300: #88B1E7;
$base-400: #5C91D6;
$base-500: #3972BC;
$base-600: #335B8F;
$base-700: #2A4365;
$base-800: #1F2E42;
$base-900: #151D29;
$base-hover: #17519C;
$base-subtle: #BCD1EC;

{
    "color": {
        "base": {
            "value": "#1D65C3",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F7FE",
                "type": "color"
            },
            "100": {
                "value": "#DBE8FB",
                "type": "color"
            },
            "200": {
                "value": "#B8D2F4",
                "type": "color"
            },
            "300": {
                "value": "#88B1E7",
                "type": "color"
            },
            "400": {
                "value": "#5C91D6",
                "type": "color"
            },
            "500": {
                "value": "#3972BC",
                "type": "color"
            },
            "600": {
                "value": "#335B8F",
                "type": "color"
            },
            "700": {
                "value": "#2A4365",
                "type": "color"
            },
            "800": {
                "value": "#1F2E42",
                "type": "color"
            },
            "900": {
                "value": "#151D29",
                "type": "color"
            }
        }
    }
}

Palettes built on #1D65C3

Color Lab

Pairs with #1D65C3

UI roles & guardrails

In real applications

Scales

Every model

Export