What color is #4389B0?

#4389B0 is a medium cyan-blue. In RGB it is rgb(67, 137, 176), and in HSL hsl(201, 45%, 48%).

Is #4389B0 accessible as text?

On white, #4389B0 has a contrast ratio of 3.86:1 (fails WCAG AA for body text); on black it is 5.44:1 (passes). For text placed on #4389B0, use black for the best readability.

What is the closest Tailwind color to #4389B0?

The nearest Tailwind CSS token is cyan-600 (#0092B8).

What colors go well with #4389B0?

#4389B0 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B16A43. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4389B0 below.

Is #4389B0 good for buttons?

#4389B0 works well for buttons and highlights, but use black text on #4389B0 — white text only reaches 3.86:1, below the 4.5:1 needed for normal-size labels.

Is #4389B0 the same as CSS steelblue?

No — #4389B0 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#4389B0 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #4389B0

Not just a swatch — here's how #4389B0 works with other colors. Named schemes with #4389B0 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #4389B0 Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

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

Nordic Calm Accent · 5 colors

Accent #4389B0 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Steel Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Signal #4389B0 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #70AED2

Steel 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 Steel Blue.

Vintage Leather Lead · 5 colors

Lead #4389B0 Secondary #6E5216 Surface #E2DCC0 Accent #385245 Anchor #57233D

Steel 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #4389B0 Secondary #98AFBD Support #969386 Ink #16140F

Steel 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 Steel Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #4389B0 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 23/100

Cool

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

Softness 51/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 39/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 47/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 25/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 83/100

Very high

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

Surface fit 34/100

Low

Usable as a tinted surface in measured doses.

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #4389B0

For UI

For branding

For interior

For fashion

People also use #4389B0 with

Medium Aquamarine Cerulean Copper Platinum 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 4.8:1. Use

Subtle surface Use #DCE7ED for cards and hover fills. Tint 80

Avoid beside #4366B1 — 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 #4389B0 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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: #4389B0;
  --color-base-rgb: 67 137 176;
  --color-base-oklch: oklch(60.1% 0.092 235.6);
  --color-50: #F4F8FB;
  --color-100: #E1EEF4;
  --color-200: #C4DCE8;
  --color-300: #9BC0D5;
  --color-400: #74A4BE;
  --color-500: #5386A2;
  --color-600: #45697D;
  --color-700: #354D5A;
  --color-800: #26343B;
  --color-900: #192025;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F4F8FB',
    100: '#E1EEF4',
    200: '#C4DCE8',
    300: '#9BC0D5',
    400: '#74A4BE',
    500: '#5386A2',
    600: '#45697D',
    700: '#354D5A',
    800: '#26343B',
    900: '#192025',
  },
}

$base: #4389B0;
$base-ink: #141310;
$base-50: #F4F8FB;
$base-100: #E1EEF4;
$base-200: #C4DCE8;
$base-300: #9BC0D5;
$base-400: #74A4BE;
$base-500: #5386A2;
$base-600: #45697D;
$base-700: #354D5A;
$base-800: #26343B;
$base-900: #192025;
$base-hover: #366F8E;
$base-subtle: #CADBE5;

{
    "color": {
        "base": {
            "value": "#4389B0",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F8FB",
                "type": "color"
            },
            "100": {
                "value": "#E1EEF4",
                "type": "color"
            },
            "200": {
                "value": "#C4DCE8",
                "type": "color"
            },
            "300": {
                "value": "#9BC0D5",
                "type": "color"
            },
            "400": {
                "value": "#74A4BE",
                "type": "color"
            },
            "500": {
                "value": "#5386A2",
                "type": "color"
            },
            "600": {
                "value": "#45697D",
                "type": "color"
            },
            "700": {
                "value": "#354D5A",
                "type": "color"
            },
            "800": {
                "value": "#26343B",
                "type": "color"
            },
            "900": {
                "value": "#192025",
                "type": "color"
            }
        }
    }
}

Palettes built on #4389B0

Color Lab

Pairs with #4389B0

UI roles & guardrails

In real applications

Scales

Every model

Export