What color is #6683BB?

#6683BB is a medium blue. In RGB it is rgb(102, 131, 187), and in HSL hsl(220, 38%, 57%).

Is #6683BB accessible as text?

On white, #6683BB has a contrast ratio of 3.80:1 (fails WCAG AA for body text); on black it is 5.53:1 (passes). For text placed on #6683BB, use black for the best readability.

What is the closest Tailwind color to #6683BB?

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

What colors go well with #6683BB?

#6683BB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BB9F68. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #6683BB below.

Is #6683BB good for buttons?

#6683BB works well for buttons and highlights, but use black text on #6683BB — white text only reaches 3.80:1, below the 4.5:1 needed for normal-size labels.

Is #6683BB the same as CSS steelblue?

No — #6683BB is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#6683BB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #6683BB

Not just a swatch — here's how #6683BB works with other colors. Named schemes with #6683BB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #6683BB 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.

Nordic Calm Accent · 5 colors

Accent #6683BB Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A7 Anchor #2E3236

Glaucous 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 #6683BB Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8DA8DD

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 #6683BB Secondary #7F4536 Surface #E1DDC1 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #6683BB Secondary #A4AFC3 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.

Build a working theme in the generator →

Color Lab

How #6683BB 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 27/100

Cool

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

Softness 52/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 38/100

Low

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 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 25/100

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 35/100

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 #6683BB

For UI

For branding

For interior

For fashion

People also use #6683BB with

Sky Blue Very Peri Camel 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 4.9:1. Use

Subtle surface Use #E3E7EF for cards and hover fills. Tint 80

Avoid beside #6868BB — 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 #6683BB 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: #6683BB;
  --color-base-rgb: 102 131 187;
  --color-base-oklch: oklch(61.1% 0.092 262.9);
  --color-50: #F4F6FB;
  --color-100: #E2E8F3;
  --color-200: #C7D1E6;
  --color-300: #9FAFD0;
  --color-400: #7A8FB8;
  --color-500: #596F9C;
  --color-600: #495979;
  --color-700: #384257;
  --color-800: #272D3A;
  --color-900: #191D24;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  glaucous: {
    50: '#F4F6FB',
    100: '#E2E8F3',
    200: '#C7D1E6',
    300: '#9FAFD0',
    400: '#7A8FB8',
    500: '#596F9C',
    600: '#495979',
    700: '#384257',
    800: '#272D3A',
    900: '#191D24',
  },
}

$base: #6683BB;
$base-ink: #141310;
$base-50: #F4F6FB;
$base-100: #E2E8F3;
$base-200: #C7D1E6;
$base-300: #9FAFD0;
$base-400: #7A8FB8;
$base-500: #596F9C;
$base-600: #495979;
$base-700: #384257;
$base-800: #272D3A;
$base-900: #191D24;
$base-hover: #4866A0;
$base-subtle: #D5DBE8;

{
    "color": {
        "base": {
            "value": "#6683BB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F6FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E8F3",
                "type": "color"
            },
            "200": {
                "value": "#C7D1E6",
                "type": "color"
            },
            "300": {
                "value": "#9FAFD0",
                "type": "color"
            },
            "400": {
                "value": "#7A8FB8",
                "type": "color"
            },
            "500": {
                "value": "#596F9C",
                "type": "color"
            },
            "600": {
                "value": "#495979",
                "type": "color"
            },
            "700": {
                "value": "#384257",
                "type": "color"
            },
            "800": {
                "value": "#272D3A",
                "type": "color"
            },
            "900": {
                "value": "#191D24",
                "type": "color"
            }
        }
    }
}

Palettes built on #6683BB

Color Lab

Pairs with #6683BB

UI roles & guardrails

In real applications

Scales

Every model

Export