What color is #507EBF?

#507EBF is a medium blue. In RGB it is rgb(80, 126, 191), and in HSL hsl(215, 46%, 53%).

Is #507EBF accessible as text?

On white, #507EBF has a contrast ratio of 4.14:1 (fails WCAG AA for body text); on black it is 5.08:1 (passes). For text placed on #507EBF, use black for the best readability.

What is the closest Tailwind color to #507EBF?

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

What colors go well with #507EBF?

#507EBF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BE9050. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #507EBF below.

Is #507EBF good for buttons?

#507EBF works well for buttons and highlights, but use black text on #507EBF — white text only reaches 4.14:1, below the 4.5:1 needed for normal-size labels.

Is #507EBF the same as CSS steelblue?

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

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

Palettes built on #507EBF

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

Coastal Morning Lead · 5 colors

Lead #507EBF 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 #507EBF Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #78A3E0

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 #507EBF Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57223B

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 #507EBF Surface #EDE9D6 Anchor #5A2144 Accent #E4C2CA 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 #507EBF Secondary #98A9C1 Support #9D8F89 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 #507EBF 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 20/100

Cool

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

Softness 48/100

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 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 30/100

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 27/100

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 #507EBF

For UI

For branding

For interior

For fashion

People also use #507EBF with

Medium Turquoise Slate Blue Peru 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 4.5:1. Use

Subtle surface Use #DFE6EF for cards and hover fills. Tint 80

Avoid beside #5059BE — 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 #507EBF 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: #507EBF;
  --color-base-rgb: 80 126 191;
  --color-base-oklch: oklch(58.9% 0.112 257.2);
  --color-50: #F3F7FB;
  --color-100: #E1E9F5;
  --color-200: #C4D3E9;
  --color-300: #9AB3D5;
  --color-400: #7393BF;
  --color-500: #5274A3;
  --color-600: #445C7E;
  --color-700: #35445A;
  --color-800: #252F3C;
  --color-900: #181E25;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F3F7FB',
    100: '#E1E9F5',
    200: '#C4D3E9',
    300: '#9AB3D5',
    400: '#7393BF',
    500: '#5274A3',
    600: '#445C7E',
    700: '#35445A',
    800: '#252F3C',
    900: '#181E25',
  },
}

$base: #507EBF;
$base-ink: #141310;
$base-50: #F3F7FB;
$base-100: #E1E9F5;
$base-200: #C4D3E9;
$base-300: #9AB3D5;
$base-400: #7393BF;
$base-500: #5274A3;
$base-600: #445C7E;
$base-700: #35445A;
$base-800: #252F3C;
$base-900: #181E25;
$base-hover: #3A649E;
$base-subtle: #CED9E8;

{
    "color": {
        "base": {
            "value": "#507EBF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E1E9F5",
                "type": "color"
            },
            "200": {
                "value": "#C4D3E9",
                "type": "color"
            },
            "300": {
                "value": "#9AB3D5",
                "type": "color"
            },
            "400": {
                "value": "#7393BF",
                "type": "color"
            },
            "500": {
                "value": "#5274A3",
                "type": "color"
            },
            "600": {
                "value": "#445C7E",
                "type": "color"
            },
            "700": {
                "value": "#35445A",
                "type": "color"
            },
            "800": {
                "value": "#252F3C",
                "type": "color"
            },
            "900": {
                "value": "#181E25",
                "type": "color"
            }
        }
    }
}

Palettes built on #507EBF

Color Lab

Pairs with #507EBF

UI roles & guardrails

In real applications

Scales

Every model

Export