What color is #507F9D?

#507F9D is a medium, muted cyan-blue. In RGB it is rgb(80, 127, 157), and in HSL hsl(203, 32%, 46%).

Is #507F9D accessible as text?

On white, #507F9D 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 #507F9D, use black for the best readability.

What is the closest Tailwind color to #507F9D?

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

What colors go well with #507F9D?

#507F9D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9B6D50. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #507F9D below.

Is #507F9D good for buttons?

#507F9D works well for buttons and highlights, but use black text on #507F9D — white text only reaches 4.32:1, below the 4.5:1 needed for normal-size labels.

Is #507F9D the same as CSS steelblue?

No — #507F9D is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#507F9D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #507F9D

Not just a swatch — here's how #507F9D works with other colors. Named schemes with #507F9D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #507F9D 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 #507F9D 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 #507F9D Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #78A3BF

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 #507F9D Secondary #7F4439 Surface #E2DDC0 Accent #385245 Anchor #57233C

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 #507F9D Secondary #96A6B1 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 #507F9D 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 30/100

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 52/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 19/100

Very low

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

UI accent fit 78/100

High

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

Surface fit 39/100

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 #507F9D

For UI

For branding

For interior

For fashion

People also use #507F9D with

Verdigris Ultra Violet Mocha Platinum 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 #DDE5EA for cards and hover fills. Tint 80

Avoid beside #50659B — 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 #507F9D 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: #507F9D;
  --color-base-rgb: 80 127 157;
  --color-base-oklch: oklch(57.5% 0.069 237.7);
  --color-50: #F5F8FA;
  --color-100: #E4ECF2;
  --color-200: #C9D9E3;
  --color-300: #A3BCCC;
  --color-400: #7F9FB3;
  --color-500: #5E8197;
  --color-600: #4D6675;
  --color-700: #3A4A54;
  --color-800: #293238;
  --color-900: #1A2023;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F5F8FA',
    100: '#E4ECF2',
    200: '#C9D9E3',
    300: '#A3BCCC',
    400: '#7F9FB3',
    500: '#5E8197',
    600: '#4D6675',
    700: '#3A4A54',
    800: '#293238',
    900: '#1A2023',
  },
}

$base: #507F9D;
$base-ink: #141310;
$base-50: #F5F8FA;
$base-100: #E4ECF2;
$base-200: #C9D9E3;
$base-300: #A3BCCC;
$base-400: #7F9FB3;
$base-500: #5E8197;
$base-600: #4D6675;
$base-700: #3A4A54;
$base-800: #293238;
$base-900: #1A2023;
$base-hover: #40657C;
$base-subtle: #CCD8E0;

{
    "color": {
        "base": {
            "value": "#507F9D",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E4ECF2",
                "type": "color"
            },
            "200": {
                "value": "#C9D9E3",
                "type": "color"
            },
            "300": {
                "value": "#A3BCCC",
                "type": "color"
            },
            "400": {
                "value": "#7F9FB3",
                "type": "color"
            },
            "500": {
                "value": "#5E8197",
                "type": "color"
            },
            "600": {
                "value": "#4D6675",
                "type": "color"
            },
            "700": {
                "value": "#3A4A54",
                "type": "color"
            },
            "800": {
                "value": "#293238",
                "type": "color"
            },
            "900": {
                "value": "#1A2023",
                "type": "color"
            }
        }
    }
}

Palettes built on #507F9D

Color Lab

Pairs with #507F9D

UI roles & guardrails

In real applications

Scales

Every model

Export