What color is #587EA7?

#587EA7 is a medium, muted blue. In RGB it is rgb(88, 126, 167), and in HSL hsl(211, 31%, 50%).

Is #587EA7 accessible as text?

On white, #587EA7 has a contrast ratio of 4.24:1 (fails WCAG AA for body text); on black it is 4.96:1 (passes). For text placed on #587EA7, use black for the best readability.

What is the closest Tailwind color to #587EA7?

The nearest Tailwind CSS token is mist-500 (#67787C).

What colors go well with #587EA7?

#587EA7 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A78158. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #587EA7 below.

Is #587EA7 good for buttons?

#587EA7 works well for buttons and highlights, but use black text on #587EA7 — white text only reaches 4.24:1, below the 4.5:1 needed for normal-size labels.

Is #587EA7 the same as CSS steelblue?

No — #587EA7 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#587EA7 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #587EA7

Not just a swatch — here's how #587EA7 works with other colors. Named schemes with #587EA7 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #587EA7 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 #587EA7 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 #587EA7 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #7FA2C9

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 #587EA7 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #587EA7 Secondary #99A7B6 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 #587EA7 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 29/100

Cool

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

Softness 52/100

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 55/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 21/100

Low

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

UI accent fit 81/100

Very high

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

Surface fit 37/100

Low

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #587EA7

For UI

For branding

For interior

For fashion

People also use #587EA7 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 #141310 text at 4.4:1. Use

Subtle surface Use #E0E5EB for cards and hover fills. Tint 80

Avoid beside #5864A7 — 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 #587EA7 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: #587EA7;
  --color-base-rgb: 88 126 167;
  --color-base-oklch: oklch(58.2% 0.077 251.1);
  --color-50: #F5F7FA;
  --color-100: #E4EAF1;
  --color-200: #CAD6E3;
  --color-300: #A4B7CC;
  --color-400: #7F98B3;
  --color-500: #5F7996;
  --color-600: #4E6074;
  --color-700: #3B4754;
  --color-800: #293038;
  --color-900: #1A1E23;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F5F7FA',
    100: '#E4EAF1',
    200: '#CAD6E3',
    300: '#A4B7CC',
    400: '#7F98B3',
    500: '#5F7996',
    600: '#4E6074',
    700: '#3B4754',
    800: '#293038',
    900: '#1A1E23',
  },
}

$base: #587EA7;
$base-ink: #141310;
$base-50: #F5F7FA;
$base-100: #E4EAF1;
$base-200: #CAD6E3;
$base-300: #A4B7CC;
$base-400: #7F98B3;
$base-500: #5F7996;
$base-600: #4E6074;
$base-700: #3B4754;
$base-800: #293038;
$base-900: #1A1E23;
$base-hover: #466586;
$base-subtle: #D0D8E2;

{
    "color": {
        "base": {
            "value": "#587EA7",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F7FA",
                "type": "color"
            },
            "100": {
                "value": "#E4EAF1",
                "type": "color"
            },
            "200": {
                "value": "#CAD6E3",
                "type": "color"
            },
            "300": {
                "value": "#A4B7CC",
                "type": "color"
            },
            "400": {
                "value": "#7F98B3",
                "type": "color"
            },
            "500": {
                "value": "#5F7996",
                "type": "color"
            },
            "600": {
                "value": "#4E6074",
                "type": "color"
            },
            "700": {
                "value": "#3B4754",
                "type": "color"
            },
            "800": {
                "value": "#293038",
                "type": "color"
            },
            "900": {
                "value": "#1A1E23",
                "type": "color"
            }
        }
    }
}

Palettes built on #587EA7

Color Lab

Pairs with #587EA7

UI roles & guardrails

In real applications

Scales

Every model

Export