What color is #677F98?

#677F98 is a medium, muted blue. In RGB it is rgb(103, 127, 152), and in HSL hsl(211, 19%, 50%).

Is #677F98 accessible as text?

On white, #677F98 has a contrast ratio of 4.15:1 (fails WCAG AA for body text); on black it is 5.07:1 (passes). For text placed on #677F98, use black for the best readability.

What is the closest Tailwind color to #677F98?

The nearest Tailwind CSS token is mist-500 (#67787C).

What colors go well with #677F98?

#677F98 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #988067. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #677F98 below.

Is #677F98 good for buttons?

#677F98 works well for buttons and highlights, but use black text on #677F98 — white text only reaches 4.15:1, below the 4.5:1 needed for normal-size labels.

Is #677F98 the same as CSS slategray?

No — #677F98 is not the CSS named color slategray, but slategray (#708090) 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.

#677F98 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #677F98

Not just a swatch — here's how #677F98 works with other colors. Named schemes with #677F98 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #677F98 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Slate Gray 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 #677F98 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Slate Gray 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 #677F98 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8DA3BB

Slate 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 Slate Gray.

Vintage Leather Lead · 5 colors

Lead #677F98 Secondary #7F4538 Surface #E1DDC0 Accent #375245 Anchor #57233B

Slate 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 #F6F4EF Accent #677F98 Secondary #9FA8B1 Support #959386 Ink #16140F

Slate 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 Slate Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #677F98 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 37/100

Cool

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

Softness 56/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 39/100

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 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 18/100

Very low

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

UI accent fit 67/100

High

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

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #677F98

For UI

For branding

For interior

For fashion

People also use #677F98 with

Cadet Grey Very Peri Beaver 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 #E2E5E9 for cards and hover fills. Tint 80

Avoid beside #676F98 — 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 #677F98 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: #677F98;
  --color-base-rgb: 103 127 152;
  --color-base-oklch: oklch(58.7% 0.048 249.7);
  --color-50: #F6F7F9;
  --color-100: #E7EAEF;
  --color-200: #CED6DE;
  --color-300: #ABB7C4;
  --color-400: #8998A9;
  --color-500: #6A7A8B;
  --color-600: #55616D;
  --color-700: #40474F;
  --color-800: #2C3035;
  --color-900: #1C1F21;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  slate-gray: {
    50: '#F6F7F9',
    100: '#E7EAEF',
    200: '#CED6DE',
    300: '#ABB7C4',
    400: '#8998A9',
    500: '#6A7A8B',
    600: '#55616D',
    700: '#40474F',
    800: '#2C3035',
    900: '#1C1F21',
  },
}

$base: #677F98;
$base-ink: #141310;
$base-50: #F6F7F9;
$base-100: #E7EAEF;
$base-200: #CED6DE;
$base-300: #ABB7C4;
$base-400: #8998A9;
$base-500: #6A7A8B;
$base-600: #55616D;
$base-700: #40474F;
$base-800: #2C3035;
$base-900: #1C1F21;
$base-hover: #536579;
$base-subtle: #D3D9DE;

{
    "color": {
        "base": {
            "value": "#677F98",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F7F9",
                "type": "color"
            },
            "100": {
                "value": "#E7EAEF",
                "type": "color"
            },
            "200": {
                "value": "#CED6DE",
                "type": "color"
            },
            "300": {
                "value": "#ABB7C4",
                "type": "color"
            },
            "400": {
                "value": "#8998A9",
                "type": "color"
            },
            "500": {
                "value": "#6A7A8B",
                "type": "color"
            },
            "600": {
                "value": "#55616D",
                "type": "color"
            },
            "700": {
                "value": "#40474F",
                "type": "color"
            },
            "800": {
                "value": "#2C3035",
                "type": "color"
            },
            "900": {
                "value": "#1C1F21",
                "type": "color"
            }
        }
    }
}

Palettes built on #677F98

Color Lab

Pairs with #677F98

UI roles & guardrails

In real applications

Scales

Every model

Export