What color is #4379B2?

#4379B2 is a medium blue. In RGB it is rgb(67, 121, 178), and in HSL hsl(211, 45%, 48%).

Is #4379B2 accessible as text?

On white, #4379B2 has a contrast ratio of 4.55:1 (passes WCAG AA for body text); on black it is 4.62:1 (passes). For text placed on #4379B2, use black for the best readability.

What is the closest Tailwind color to #4379B2?

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

What colors go well with #4379B2?

#4379B2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B17C43. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4379B2 below.

Is #4379B2 good for buttons?

#4379B2 works for buttons; black text has the higher contrast, so prefer it for labels.

Is #4379B2 the same as CSS steelblue?

No — #4379B2 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#4379B2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #4379B2

Not just a swatch — here's how #4379B2 works with other colors. Named schemes with #4379B2 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #4379B2 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Steel 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 #4379B2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #6D9ED3

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 #4379B2 Secondary #7F4537 Surface #E1DDC0 Accent #375245 Anchor #57233B

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.

Berry & Cream Lead · 5 colors

Lead #4379B2 Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CB Secondary #322B2F

Steel 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 #4379B2 Secondary #8FA2B7 Support #959386 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 #4379B2 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 21/100

Cool

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

Softness 47/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 44/100

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 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 51/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 29/100

Low

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

UI accent fit 93/100

Very high

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

Surface fit 26/100

Low

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

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #4379B2

For UI

For branding

For interior

For fashion

People also use #4379B2 with

Robin Egg Blue Cerulean Copper 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 4.5:1. Use

Subtle surface Use #DCE4ED for cards and hover fills. Tint 80

Avoid beside #4354B1 — 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 #4379B2 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: #4379B2;
  --color-base-rgb: 67 121 178;
  --color-base-oklch: oklch(56.5% 0.106 251.4);
  --color-50: #F4F7FB;
  --color-100: #E1EAF4;
  --color-200: #C4D6E8;
  --color-300: #9BB7D5;
  --color-400: #7498BE;
  --color-500: #5379A2;
  --color-600: #45607D;
  --color-700: #35475A;
  --color-800: #26303B;
  --color-900: #191E25;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F4F7FB',
    100: '#E1EAF4',
    200: '#C4D6E8',
    300: '#9BB7D5',
    400: '#7498BE',
    500: '#5379A2',
    600: '#45607D',
    700: '#35475A',
    800: '#26303B',
    900: '#191E25',
  },
}

$base: #4379B2;
$base-ink: #141310;
$base-50: #F4F7FB;
$base-100: #E1EAF4;
$base-200: #C4D6E8;
$base-300: #9BB7D5;
$base-400: #7498BE;
$base-500: #5379A2;
$base-600: #45607D;
$base-700: #35475A;
$base-800: #26303B;
$base-900: #191E25;
$base-hover: #36608E;
$base-subtle: #CAD7E5;

{
    "color": {
        "base": {
            "value": "#4379B2",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E1EAF4",
                "type": "color"
            },
            "200": {
                "value": "#C4D6E8",
                "type": "color"
            },
            "300": {
                "value": "#9BB7D5",
                "type": "color"
            },
            "400": {
                "value": "#7498BE",
                "type": "color"
            },
            "500": {
                "value": "#5379A2",
                "type": "color"
            },
            "600": {
                "value": "#45607D",
                "type": "color"
            },
            "700": {
                "value": "#35475A",
                "type": "color"
            },
            "800": {
                "value": "#26303B",
                "type": "color"
            },
            "900": {
                "value": "#191E25",
                "type": "color"
            }
        }
    }
}

Palettes built on #4379B2

Color Lab

Pairs with #4379B2

UI roles & guardrails

In real applications

Scales

Every model

Export