What color is #1183DA?

#1183DA is a medium, vivid cyan-blue. In RGB it is rgb(17, 131, 218), and in HSL hsl(206, 86%, 46%).

Is #1183DA accessible as text?

On white, #1183DA has a contrast ratio of 3.98:1 (fails WCAG AA for body text); on black it is 5.28:1 (passes). For text placed on #1183DA, use black for the best readability.

What is the closest Tailwind color to #1183DA?

The nearest Tailwind CSS token is sky-600 (#0084D1).

What colors go well with #1183DA?

#1183DA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DA6810. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1183DA below.

Is #1183DA good for buttons?

#1183DA works well for buttons and highlights, but use black text on #1183DA — white text only reaches 3.98:1, below the 4.5:1 needed for normal-size labels.

Is #1183DA the same as CSS steelblue?

No — #1183DA is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#1183DA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1183DA

Not just a swatch — here's how #1183DA works with other colors. Named schemes with #1183DA in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1183DA Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

True 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 #1183DA Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #53A9FA

True 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 True Blue.

Vintage Leather Lead · 5 colors

Lead #1183DA Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233B

True 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 #1183DA Surface #EDE9D6 Anchor #5A2245 Accent #E4C2CB Secondary #322B2F

True 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 #1183DA Secondary #8FAECD Support #959386 Ink #16140F

True 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 True Blue carrying the quiet middle.

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Color Lab

How #1183DA 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 5/100

Cool

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

Softness 42/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 42/100

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 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 43/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 91/100

Very high

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

Surface fit 17/100

Very low

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

Print safety 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #1183DA

For UI

For branding

For interior

For fashion

People also use #1183DA with

Turquoise Medium Blue Chocolate Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.7:1. Use

Subtle surface Use #D2E6F5 for cards and hover fills. Tint 80

Avoid beside #103FDA — 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 #1183DA 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: #1183DA;
  --color-base-rgb: 17 131 218;
  --color-base-oklch: oklch(59.8% 0.161 249.2);
  --color-50: #F0F8FE;
  --color-100: #D8EDFD;
  --color-200: #B3DBF9;
  --color-300: #80BFEF;
  --color-400: #52A2E0;
  --color-500: #2F84C6;
  --color-600: #2B6896;
  --color-700: #254C6A;
  --color-800: #1C3345;
  --color-900: #13202A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  true-blue: {
    50: '#F0F8FE',
    100: '#D8EDFD',
    200: '#B3DBF9',
    300: '#80BFEF',
    400: '#52A2E0',
    500: '#2F84C6',
    600: '#2B6896',
    700: '#254C6A',
    800: '#1C3345',
    900: '#13202A',
  },
}

$base: #1183DA;
$base-ink: #141310;
$base-50: #F0F8FE;
$base-100: #D8EDFD;
$base-200: #B3DBF9;
$base-300: #80BFEF;
$base-400: #52A2E0;
$base-500: #2F84C6;
$base-600: #2B6896;
$base-700: #254C6A;
$base-800: #1C3345;
$base-900: #13202A;
$base-hover: #0D69AF;
$base-subtle: #BBD9F1;

{
    "color": {
        "base": {
            "value": "#1183DA",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F8FE",
                "type": "color"
            },
            "100": {
                "value": "#D8EDFD",
                "type": "color"
            },
            "200": {
                "value": "#B3DBF9",
                "type": "color"
            },
            "300": {
                "value": "#80BFEF",
                "type": "color"
            },
            "400": {
                "value": "#52A2E0",
                "type": "color"
            },
            "500": {
                "value": "#2F84C6",
                "type": "color"
            },
            "600": {
                "value": "#2B6896",
                "type": "color"
            },
            "700": {
                "value": "#254C6A",
                "type": "color"
            },
            "800": {
                "value": "#1C3345",
                "type": "color"
            },
            "900": {
                "value": "#13202A",
                "type": "color"
            }
        }
    }
}

Palettes built on #1183DA

Color Lab

Pairs with #1183DA

UI roles & guardrails

In real applications

Scales

Every model

Export