What color is #1737BB?

#1737BB is a medium, vivid blue. In RGB it is rgb(23, 55, 187), and in HSL hsl(228, 78%, 41%).

Is #1737BB accessible as text?

On white, #1737BB has a contrast ratio of 9.13:1 (passes WCAG AA for body text); on black it is 2.30:1 (fails). For text placed on #1737BB, use white for the best readability.

What is the closest Tailwind color to #1737BB?

The nearest Tailwind CSS token is blue-800 (#193CB8).

What colors go well with #1737BB?

#1737BB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BA9917. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1737BB below.

Is #1737BB good for buttons?

#1737BB works well for buttons and highlights, but use white text on #1737BB — black text only reaches 2.30:1, below the 4.5:1 needed for normal-size labels.

Is #1737BB the same as CSS mediumblue?

No — #1737BB is not the CSS named color mediumblue, but mediumblue (#0000CD) is the closest CSS named color.

#1737BB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1737BB

Not just a swatch — here's how #1737BB works with other colors. Named schemes with #1737BB in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #1737BB Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #3A63D9

Egyptian 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 Egyptian Blue.

Coastal Morning Lead · 5 colors

Lead #1737BB Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Egyptian Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Berry & Cream Lead · 5 colors

Lead #1737BB Surface #F6E5D8 Anchor #5B2144 Accent #E5C2CA Secondary #322B2F

Egyptian Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #1737BB Secondary #60739F Support #9D8F88 Ink #18140F

Egyptian 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 Egyptian Blue carrying the quiet middle.

Sunset Warmth Glow · 5 colors

Glow #1737BB Secondary #E86A74 Accent #F79251 Anchor #573B58 Surface #F7E7D7

Egyptian Blue glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #1737BB 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 9/100

Cool

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

Softness 26/100

Low

Firm and assertive — carries weight and contrast.

Depth 63/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 18/100

Very low

Clean and current — no dusty, aged cast.

Luxury 57/100

Moderate

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

Brand distinctiveness 80/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 67/100

High

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

Surface fit 13/100

Very low

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

Print safety 62/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #1737BB

For UI

For branding

For interior

For fashion

People also use #1737BB with

Picton Blue Grape Dijon Gainsboro Gunmetal Gray

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

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 9.1:1. Use

Subtle surface Use #D0D7F2 for cards and hover fills. Tint 80

Avoid beside #2D17BA — 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 #1737BB 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: #1737BB;
  --color-base-rgb: 23 55 187;
  --color-base-oklch: oklch(41.8% 0.208 265.8);
  --color-50: #F1F3FE;
  --color-100: #DAE1FB;
  --color-200: #B6C3F6;
  --color-300: #8599EA;
  --color-400: #5872DA;
  --color-500: #3651BF;
  --color-600: #304491;
  --color-700: #283567;
  --color-800: #1E2543;
  --color-900: #141829;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  egyptian-blue: {
    50: '#F1F3FE',
    100: '#DAE1FB',
    200: '#B6C3F6',
    300: '#8599EA',
    400: '#5872DA',
    500: '#3651BF',
    600: '#304491',
    700: '#283567',
    800: '#1E2543',
    900: '#141829',
  },
}

$base: #1737BB;
$base-ink: #FFFFFF;
$base-50: #F1F3FE;
$base-100: #DAE1FB;
$base-200: #B6C3F6;
$base-300: #8599EA;
$base-400: #5872DA;
$base-500: #3651BF;
$base-600: #304491;
$base-700: #283567;
$base-800: #1E2543;
$base-900: #141829;
$base-hover: #122C95;
$base-subtle: #B7C2ED;

{
    "color": {
        "base": {
            "value": "#1737BB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F3FE",
                "type": "color"
            },
            "100": {
                "value": "#DAE1FB",
                "type": "color"
            },
            "200": {
                "value": "#B6C3F6",
                "type": "color"
            },
            "300": {
                "value": "#8599EA",
                "type": "color"
            },
            "400": {
                "value": "#5872DA",
                "type": "color"
            },
            "500": {
                "value": "#3651BF",
                "type": "color"
            },
            "600": {
                "value": "#304491",
                "type": "color"
            },
            "700": {
                "value": "#283567",
                "type": "color"
            },
            "800": {
                "value": "#1E2543",
                "type": "color"
            },
            "900": {
                "value": "#141829",
                "type": "color"
            }
        }
    }
}

Palettes built on #1737BB

Color Lab

Pairs with #1737BB

UI roles & guardrails

In real applications

Scales

Every model

Export