What color is #2663A9?

#2663A9 is a medium blue. In RGB it is rgb(38, 99, 169), and in HSL hsl(212, 63%, 41%).

Is #2663A9 accessible as text?

On white, #2663A9 has a contrast ratio of 6.10:1 (passes WCAG AA for body text); on black it is 3.44:1 (fails). For text placed on #2663A9, use white for the best readability.

What is the closest Tailwind color to #2663A9?

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

What colors go well with #2663A9?

#2663A9 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AA6D27. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2663A9 below.

Is #2663A9 good for buttons?

#2663A9 works well for buttons and highlights, but use white text on #2663A9 — black text only reaches 3.44:1, below the 4.5:1 needed for normal-size labels.

Is #2663A9 the same as CSS royalblue?

No — #2663A9 is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#2663A9 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2663A9

Not just a swatch — here's how #2663A9 works with other colors. Named schemes with #2663A9 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2663A9 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 #2663A9 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5288C9

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 #2663A9 Secondary #7F4537 Surface #E1DDC1 Accent #375246 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 #2663A9 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 #2663A9 Secondary #798DA7 Support #9D8F89 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 #2663A9 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 15/100

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 45/100

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 35/100

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 14/100

Very low

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

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2663A9

For UI

For branding

For interior

For fashion

People also use #2663A9 with

Robin Egg Blue Egyptian 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 6.1:1. Use

Subtle surface Use #D3E0EF for cards and hover fills. Tint 80

Avoid beside #2738AA — 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 #2663A9 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: #2663A9;
  --color-base-rgb: 38 99 169;
  --color-base-oklch: oklch(49.7% 0.128 254.3);
  --color-50: #F2F7FD;
  --color-100: #DDEAF8;
  --color-200: #BDD4F0;
  --color-300: #8FB5E0;
  --color-400: #6596CD;
  --color-500: #4377B2;
  --color-600: #3A5E88;
  --color-700: #2E4661;
  --color-800: #212F40;
  --color-900: #161E27;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F2F7FD',
    100: '#DDEAF8',
    200: '#BDD4F0',
    300: '#8FB5E0',
    400: '#6596CD',
    500: '#4377B2',
    600: '#3A5E88',
    700: '#2E4661',
    800: '#212F40',
    900: '#161E27',
  },
}

$base: #2663A9;
$base-ink: #FFFFFF;
$base-50: #F2F7FD;
$base-100: #DDEAF8;
$base-200: #BDD4F0;
$base-300: #8FB5E0;
$base-400: #6596CD;
$base-500: #4377B2;
$base-600: #3A5E88;
$base-700: #2E4661;
$base-800: #212F40;
$base-900: #161E27;
$base-hover: #1F5088;
$base-subtle: #BCD0E7;

{
    "color": {
        "base": {
            "value": "#2663A9",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F7FD",
                "type": "color"
            },
            "100": {
                "value": "#DDEAF8",
                "type": "color"
            },
            "200": {
                "value": "#BDD4F0",
                "type": "color"
            },
            "300": {
                "value": "#8FB5E0",
                "type": "color"
            },
            "400": {
                "value": "#6596CD",
                "type": "color"
            },
            "500": {
                "value": "#4377B2",
                "type": "color"
            },
            "600": {
                "value": "#3A5E88",
                "type": "color"
            },
            "700": {
                "value": "#2E4661",
                "type": "color"
            },
            "800": {
                "value": "#212F40",
                "type": "color"
            },
            "900": {
                "value": "#161E27",
                "type": "color"
            }
        }
    }
}

Palettes built on #2663A9

Color Lab

Pairs with #2663A9

UI roles & guardrails

In real applications

Scales

Every model

Export