What color is #557ED2?

#557ED2 is a medium blue. In RGB it is rgb(85, 126, 210), and in HSL hsl(220, 58%, 58%).

Is #557ED2 accessible as text?

On white, #557ED2 has a contrast ratio of 3.96:1 (fails WCAG AA for body text); on black it is 5.30:1 (passes). For text placed on #557ED2, use black for the best readability.

What is the closest Tailwind color to #557ED2?

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

What colors go well with #557ED2?

#557ED2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D2A956. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #557ED2 below.

Is #557ED2 good for buttons?

#557ED2 works well for buttons and highlights, but use black text on #557ED2 — white text only reaches 3.96:1, below the 4.5:1 needed for normal-size labels.

Is #557ED2 the same as CSS steelblue?

No — #557ED2 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#557ED2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #557ED2

Not just a swatch — here's how #557ED2 works with other colors. Named schemes with #557ED2 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #557ED2 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Glaucous 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 #557ED2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #7DA4F2

Glaucous is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Glaucous.

Vintage Leather Lead · 5 colors

Lead #557ED2 Secondary #7F4536 Surface #EED7C2 Accent #375246 Anchor #57223A

Glaucous 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 #557ED2 Surface #F6E5D8 Anchor #5B2144 Accent #E4C2CA Secondary #322B2F

Glaucous 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 #557ED2 Secondary #9CACCB Support #9D8F88 Ink #18140F

Glaucous 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 Glaucous carrying the quiet middle.

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Color Lab

How #557ED2 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 16/100

Cool

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

Softness 46/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

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 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 37/100

Low

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 21/100

Low

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

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #557ED2

For UI

For branding

For interior

For fashion

People also use #557ED2 with

Sky Blue Slate Blue Goldenrod 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 #E1E7F3 for cards and hover fills. Tint 80

Avoid beside #5656D2 — 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 #557ED2 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: #557ED2;
  --color-base-rgb: 85 126 210;
  --color-base-oklch: oklch(60.3% 0.136 263.3);
  --color-50: #F2F6FC;
  --color-100: #DEE6F7;
  --color-200: #BFCEEE;
  --color-300: #92ABDD;
  --color-400: #6989C9;
  --color-500: #4769AD;
  --color-600: #3D5585;
  --color-700: #30405F;
  --color-800: #232C3E;
  --color-900: #171C26;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  glaucous: {
    50: '#F2F6FC',
    100: '#DEE6F7',
    200: '#BFCEEE',
    300: '#92ABDD',
    400: '#6989C9',
    500: '#4769AD',
    600: '#3D5585',
    700: '#30405F',
    800: '#232C3E',
    900: '#171C26',
  },
}

$base: #557ED2;
$base-ink: #141310;
$base-50: #F2F6FC;
$base-100: #DEE6F7;
$base-200: #BFCEEE;
$base-300: #92ABDD;
$base-400: #6989C9;
$base-500: #4769AD;
$base-600: #3D5585;
$base-700: #30405F;
$base-800: #232C3E;
$base-900: #171C26;
$base-hover: #325FBB;
$base-subtle: #D1DAED;

{
    "color": {
        "base": {
            "value": "#557ED2",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F6FC",
                "type": "color"
            },
            "100": {
                "value": "#DEE6F7",
                "type": "color"
            },
            "200": {
                "value": "#BFCEEE",
                "type": "color"
            },
            "300": {
                "value": "#92ABDD",
                "type": "color"
            },
            "400": {
                "value": "#6989C9",
                "type": "color"
            },
            "500": {
                "value": "#4769AD",
                "type": "color"
            },
            "600": {
                "value": "#3D5585",
                "type": "color"
            },
            "700": {
                "value": "#30405F",
                "type": "color"
            },
            "800": {
                "value": "#232C3E",
                "type": "color"
            },
            "900": {
                "value": "#171C26",
                "type": "color"
            }
        }
    }
}

Palettes built on #557ED2

Color Lab

Pairs with #557ED2

UI roles & guardrails

In real applications

Scales

Every model

Export