What color is #6689BB?

#6689BB is a medium blue. In RGB it is rgb(102, 137, 187), and in HSL hsl(215, 38%, 57%).

Is #6689BB accessible as text?

On white, #6689BB has a contrast ratio of 3.58:1 (fails WCAG AA for body text); on black it is 5.86:1 (passes). For text placed on #6689BB, use black for the best readability.

What is the closest Tailwind color to #6689BB?

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

What colors go well with #6689BB?

#6689BB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BB9868. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #6689BB below.

Is #6689BB good for buttons?

#6689BB works well for buttons and highlights, but use black text on #6689BB — white text only reaches 3.58:1, below the 4.5:1 needed for normal-size labels.

Is #6689BB the same as CSS steelblue?

No — #6689BB is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#6689BB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #6689BB

Not just a swatch — here's how #6689BB works with other colors. Named schemes with #6689BB in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #6689BB Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Glaucous keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Coastal Morning Lead · 5 colors

Lead #6689BB Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Glaucous opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Japanese Sand Base · 5 colors

Base #6689BB Surface #EBEADC Highlight #F4F2E7 Secondary #B1B2A0 Ink #2C2724

Glaucous sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Tech Product Signal · 5 colors

Signal #6689BB Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8DAEDD

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #6689BB Secondary #A7B3C6 Support #9D8F89 Ink #16140F

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 #6689BB 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 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

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 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 44/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 76/100

High

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

Surface fit 38/100

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 #6689BB

For UI

For branding

For interior

For fashion

People also use #6689BB with

Medium Turquoise 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 5.2:1. Use

Subtle surface Use #E3E8EF for cards and hover fills. Tint 80

Avoid beside #686FBB — 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 #6689BB at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #6689BB;
  --color-base-rgb: 102 137 187;
  --color-base-oklch: oklch(62.4% 0.086 257.3);
  --color-50: #F4F7FB;
  --color-100: #E2E9F3;
  --color-200: #C7D4E6;
  --color-300: #9FB4D0;
  --color-400: #7A94B8;
  --color-500: #59759C;
  --color-600: #495D79;
  --color-700: #384557;
  --color-800: #272F3A;
  --color-900: #191E24;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  glaucous: {
    50: '#F4F7FB',
    100: '#E2E9F3',
    200: '#C7D4E6',
    300: '#9FB4D0',
    400: '#7A94B8',
    500: '#59759C',
    600: '#495D79',
    700: '#384557',
    800: '#272F3A',
    900: '#191E24',
  },
}

$base: #6689BB;
$base-ink: #141310;
$base-50: #F4F7FB;
$base-100: #E2E9F3;
$base-200: #C7D4E6;
$base-300: #9FB4D0;
$base-400: #7A94B8;
$base-500: #59759C;
$base-600: #495D79;
$base-700: #384557;
$base-800: #272F3A;
$base-900: #191E24;
$base-hover: #486DA0;
$base-subtle: #D5DDE8;

{
    "color": {
        "base": {
            "value": "#6689BB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E9F3",
                "type": "color"
            },
            "200": {
                "value": "#C7D4E6",
                "type": "color"
            },
            "300": {
                "value": "#9FB4D0",
                "type": "color"
            },
            "400": {
                "value": "#7A94B8",
                "type": "color"
            },
            "500": {
                "value": "#59759C",
                "type": "color"
            },
            "600": {
                "value": "#495D79",
                "type": "color"
            },
            "700": {
                "value": "#384557",
                "type": "color"
            },
            "800": {
                "value": "#272F3A",
                "type": "color"
            },
            "900": {
                "value": "#191E24",
                "type": "color"
            }
        }
    }
}

Palettes built on #6689BB

Color Lab

Pairs with #6689BB

UI roles & guardrails

In real applications

Scales

Every model

Export