What color is #537DA7?

#537DA7 is a medium, muted blue. In RGB it is rgb(83, 125, 167), and in HSL hsl(210, 34%, 49%).

Is #537DA7 accessible as text?

On white, #537DA7 has a contrast ratio of 4.32:1 (fails WCAG AA for body text); on black it is 4.86:1 (passes). For text placed on #537DA7, use black for the best readability.

What is the closest Tailwind color to #537DA7?

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

What colors go well with #537DA7?

#537DA7 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A77D52. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #537DA7 below.

Is #537DA7 good for buttons?

#537DA7 works well for buttons and highlights, but use black text on #537DA7 — white text only reaches 4.32:1, below the 4.5:1 needed for normal-size labels.

Is #537DA7 the same as CSS steelblue?

No — #537DA7 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#537DA7 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #537DA7

Not just a swatch — here's how #537DA7 works with other colors. Named schemes with #537DA7 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #537DA7 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.

Nordic Calm Accent · 5 colors

Accent #537DA7 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 #537DA7 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #7BA1C9

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 #537DA7 Secondary #7F4438 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #537DA7 Secondary #97A5B5 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.

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Color Lab

How #537DA7 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 28/100

Cool

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

Softness 51/100

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 56/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 22/100

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 35/100

Low

Usable as a tinted surface in measured doses.

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #537DA7

For UI

For branding

For interior

For fashion

People also use #537DA7 with

Verdigris Tanzanite Beaver Gainsboro Charcoal

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

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

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

Background Pair with white text at 4.3:1. Use

Subtle surface Use #DFE5EB for cards and hover fills. Tint 80

Avoid beside #5261A7 — 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 #537DA7 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: #537DA7;
  --color-base-rgb: 83 125 167;
  --color-base-oklch: oklch(57.6% 0.080 249.4);
  --color-50: #F4F7FA;
  --color-100: #E3EBF2;
  --color-200: #C8D6E4;
  --color-300: #A2B8CE;
  --color-400: #7D99B5;
  --color-500: #5C7A98;
  --color-600: #4C6176;
  --color-700: #3A4755;
  --color-800: #283039;
  --color-900: #1A1F23;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F4F7FA',
    100: '#E3EBF2',
    200: '#C8D6E4',
    300: '#A2B8CE',
    400: '#7D99B5',
    500: '#5C7A98',
    600: '#4C6176',
    700: '#3A4755',
    800: '#283039',
    900: '#1A1F23',
  },
}

$base: #537DA7;
$base-ink: #141310;
$base-50: #F4F7FA;
$base-100: #E3EBF2;
$base-200: #C8D6E4;
$base-300: #A2B8CE;
$base-400: #7D99B5;
$base-500: #5C7A98;
$base-600: #4C6176;
$base-700: #3A4755;
$base-800: #283039;
$base-900: #1A1F23;
$base-hover: #426486;
$base-subtle: #CED8E2;

{
    "color": {
        "base": {
            "value": "#537DA7",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F7FA",
                "type": "color"
            },
            "100": {
                "value": "#E3EBF2",
                "type": "color"
            },
            "200": {
                "value": "#C8D6E4",
                "type": "color"
            },
            "300": {
                "value": "#A2B8CE",
                "type": "color"
            },
            "400": {
                "value": "#7D99B5",
                "type": "color"
            },
            "500": {
                "value": "#5C7A98",
                "type": "color"
            },
            "600": {
                "value": "#4C6176",
                "type": "color"
            },
            "700": {
                "value": "#3A4755",
                "type": "color"
            },
            "800": {
                "value": "#283039",
                "type": "color"
            },
            "900": {
                "value": "#1A1F23",
                "type": "color"
            }
        }
    }
}

Palettes built on #537DA7

Color Lab

Pairs with #537DA7

UI roles & guardrails

In real applications

Scales

Every model

Export