What color is #669E89?

#669E89 is a medium, muted teal-green. In RGB it is rgb(102, 158, 137), and in HSL hsl(158, 22%, 51%).

Is #669E89 accessible as text?

On white, #669E89 has a contrast ratio of 3.08:1 (fails WCAG AA for body text); on black it is 6.82:1 (passes). For text placed on #669E89, use black for the best readability.

What is the closest Tailwind color to #669E89?

The nearest Tailwind CSS token is teal-600 (#009689).

What colors go well with #669E89?

#669E89 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9E677B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #669E89 below.

Is #669E89 good for buttons?

#669E89 works well for buttons and highlights, but use black text on #669E89 — white text only reaches 3.08:1, below the 4.5:1 needed for normal-size labels.

Is #669E89 the same as CSS cadetblue?

No — #669E89 is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#669E89 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #669E89

Not just a swatch — here's how #669E89 works with other colors. Named schemes with #669E89 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #669E89 Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

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

Japanese Sand Base · 5 colors

Base #669E89 Surface #EDEADC Highlight #F5F1E7 Secondary #B5B09F Ink #2A2723

Cadet Blue 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.

Coastal Morning Lead · 5 colors

Lead #669E89 Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3549

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

Desert Clay Center · 5 colors

Center #669E89 Surface #DBD1A8 Secondary #A97F4C Accent #899B75 Anchor #3C2D1E

Cadet Blue holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #669E89 Secondary #AEC1B9 Support #989286 Ink #16140F

Cadet 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 Cadet Blue carrying the quiet middle.

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Color Lab

How #669E89 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 40/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 59/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 34/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 48/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 53/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 40/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 26/100

Low

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

UI accent fit 62/100

High

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

Surface fit 47/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #669E89

For UI

For branding

For interior

For fashion

People also use #669E89 with

Asparagus Cadet Blue Mauve Taupe Platinum Dark Slate Gray

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 6.0:1. Use

Subtle surface Use #E2EAE7 for cards and hover fills. Tint 80

Avoid beside #679E9C — 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 #669E89 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: #669E89;
  --color-base-rgb: 102 158 137;
  --color-base-oklch: oklch(65.4% 0.067 168.6);
  --color-50: #F6F9F8;
  --color-100: #E6EFEC;
  --color-200: #CDDFD9;
  --color-300: #A9C6BB;
  --color-400: #87AB9E;
  --color-500: #678E80;
  --color-600: #536F65;
  --color-700: #3F504A;
  --color-800: #2B3632;
  --color-900: #1C221F;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cadet-blue: {
    50: '#F6F9F8',
    100: '#E6EFEC',
    200: '#CDDFD9',
    300: '#A9C6BB',
    400: '#87AB9E',
    500: '#678E80',
    600: '#536F65',
    700: '#3F504A',
    800: '#2B3632',
    900: '#1C221F',
  },
}

$base: #669E89;
$base-ink: #141310;
$base-50: #F6F9F8;
$base-100: #E6EFEC;
$base-200: #CDDFD9;
$base-300: #A9C6BB;
$base-400: #87AB9E;
$base-500: #678E80;
$base-600: #536F65;
$base-700: #3F504A;
$base-800: #2B3632;
$base-900: #1C221F;
$base-hover: #517F6E;
$base-subtle: #D3E0DB;

{
    "color": {
        "base": {
            "value": "#669E89",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F9F8",
                "type": "color"
            },
            "100": {
                "value": "#E6EFEC",
                "type": "color"
            },
            "200": {
                "value": "#CDDFD9",
                "type": "color"
            },
            "300": {
                "value": "#A9C6BB",
                "type": "color"
            },
            "400": {
                "value": "#87AB9E",
                "type": "color"
            },
            "500": {
                "value": "#678E80",
                "type": "color"
            },
            "600": {
                "value": "#536F65",
                "type": "color"
            },
            "700": {
                "value": "#3F504A",
                "type": "color"
            },
            "800": {
                "value": "#2B3632",
                "type": "color"
            },
            "900": {
                "value": "#1C221F",
                "type": "color"
            }
        }
    }
}

Palettes built on #669E89

Color Lab

Pairs with #669E89

UI roles & guardrails

In real applications

Scales

Every model

Export