What color is #666D7A?

#666D7A is a medium low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(102, 109, 122), and in HSL hsl(219, 9%, 44%).

Is #666D7A accessible as text?

On white, #666D7A has a contrast ratio of 5.21:1 (passes WCAG AA for body text); on black it is 4.03:1 (fails). For text placed on #666D7A, use white for the best readability.

What is the closest Tailwind color to #666D7A?

The nearest Tailwind CSS token is gray-500 (#6A7282).

What colors go well with #666D7A?

As a neutral, #666D7A pairs cleanly with either light or dark text depending on the surface, and sits under accent hues like blue, violet, emerald or warm orange — use it as a muted neutral, divider, icon or disabled-state color and let the accent carry the color.

Is #666D7A the same as CSS dimgray?

No — #666D7A is not the CSS named color dimgray, but dimgray (#696969) is the closest CSS named color.

#666D7A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #666D7A

Not just a swatch — here's how #666D7A works with other colors. Named schemes with #666D7A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #666D7A Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Dim Gray 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 #666D7A Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8A909D

Dim Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Dim Gray.

Nordic Calm Accent · 5 colors

Accent #666D7A Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A7 Anchor #2E3236

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

Vintage Leather Lead · 5 colors

Lead #666D7A Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

Dim Gray 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 #666D7A Secondary #94969B Support #9D8F88 Ink #18140F

Dim Gray 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 Dim Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #666D7A 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 44/100

Neutral

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

Softness 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 44/100

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 39/100

Low

A faint retro warmth without tipping into sepia.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 9/100

Very low

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

UI accent fit 57/100

Moderate

Workable accent with care around contrast.

Surface fit 49/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #666D7A

For UI

For branding

For interior

For fashion

People also use #666D7A with

Light Slate Gray Dim Gray Shadow Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 5.2:1. Use

Subtle surface Use #E1E2E4 for cards and hover fills. Tint 80

Avoid beside #66667A — 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 #666D7A 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: #666D7A;
  --color-base-rgb: 102 109 122;
  --color-base-oklch: oklch(53.3% 0.022 262.9);
  --color-50: #F7F7F8;
  --color-100: #E9EAED;
  --color-200: #D3D5DA;
  --color-300: #B2B6BD;
  --color-400: #9297A0;
  --color-500: #727882;
  --color-600: #5B5F67;
  --color-700: #44464B;
  --color-800: #2E3033;
  --color-900: #1D1E20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dim-gray: {
    50: '#F7F7F8',
    100: '#E9EAED',
    200: '#D3D5DA',
    300: '#B2B6BD',
    400: '#9297A0',
    500: '#727882',
    600: '#5B5F67',
    700: '#44464B',
    800: '#2E3033',
    900: '#1D1E20',
  },
}

$base: #666D7A;
$base-ink: #FFFFFF;
$base-50: #F7F7F8;
$base-100: #E9EAED;
$base-200: #D3D5DA;
$base-300: #B2B6BD;
$base-400: #9297A0;
$base-500: #727882;
$base-600: #5B5F67;
$base-700: #44464B;
$base-800: #2E3033;
$base-900: #1D1E20;
$base-hover: #525762;
$base-subtle: #D1D3D7;

{
    "color": {
        "base": {
            "value": "#666D7A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F7F8",
                "type": "color"
            },
            "100": {
                "value": "#E9EAED",
                "type": "color"
            },
            "200": {
                "value": "#D3D5DA",
                "type": "color"
            },
            "300": {
                "value": "#B2B6BD",
                "type": "color"
            },
            "400": {
                "value": "#9297A0",
                "type": "color"
            },
            "500": {
                "value": "#727882",
                "type": "color"
            },
            "600": {
                "value": "#5B5F67",
                "type": "color"
            },
            "700": {
                "value": "#44464B",
                "type": "color"
            },
            "800": {
                "value": "#2E3033",
                "type": "color"
            },
            "900": {
                "value": "#1D1E20",
                "type": "color"
            }
        }
    }
}

Palettes built on #666D7A

Color Lab

Pairs with #666D7A

UI roles & guardrails

In real applications

Scales

Every model

Export