What color is #617F8A?

#617F8A is a medium, muted cyan-blue. In RGB it is rgb(97, 127, 138), and in HSL hsl(196, 17%, 46%).

Is #617F8A accessible as text?

On white, #617F8A has a contrast ratio of 4.28:1 (fails WCAG AA for body text); on black it is 4.91:1 (passes). For text placed on #617F8A, use black for the best readability.

What is the closest Tailwind color to #617F8A?

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

What colors go well with #617F8A?

#617F8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #896C61. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #617F8A below.

Is #617F8A good for buttons?

#617F8A works well for buttons and highlights, but use black text on #617F8A — white text only reaches 4.28:1, below the 4.5:1 needed for normal-size labels.

Is #617F8A the same as CSS slategray?

No — #617F8A 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.

#617F8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #617F8A

Not just a swatch — here's how #617F8A works with other colors. Named schemes with #617F8A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #617F8A Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E354A

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 #617F8A Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A5 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 #617F8A Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #87A3AD

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 #617F8A Secondary #6F5116 Surface #E2DCC0 Accent #385244 Anchor #56233E

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 #617F8A Secondary #9BA6AA Support #969386 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 #617F8A 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 39/100

Neutral

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

Softness 56/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 40/100

Moderate

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

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 15/100

Very low

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

UI accent fit 63/100

High

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

Surface fit 48/100

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 #617F8A

For UI

For branding

For interior

For fashion

People also use #617F8A with

Cadet Blue Dim Gray Shadow Platinum 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 4.3:1. Use

Subtle surface Use #E0E5E7 for cards and hover fills. Tint 80

Avoid beside #617189 — 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 #617F8A 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: #617F8A;
  --color-base-rgb: 97 127 138;
  --color-base-oklch: oklch(57.7% 0.038 222.4);
  --color-50: #F6F8F9;
  --color-100: #E7ECEE;
  --color-200: #CFD9DD;
  --color-300: #ADBDC3;
  --color-400: #8BA0A7;
  --color-500: #6B8189;
  --color-600: #56666B;
  --color-700: #414B4E;
  --color-800: #2C3235;
  --color-900: #1C2021;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  slate-gray: {
    50: '#F6F8F9',
    100: '#E7ECEE',
    200: '#CFD9DD',
    300: '#ADBDC3',
    400: '#8BA0A7',
    500: '#6B8189',
    600: '#56666B',
    700: '#414B4E',
    800: '#2C3235',
    900: '#1C2021',
  },
}

$base: #617F8A;
$base-ink: #141310;
$base-50: #F6F8F9;
$base-100: #E7ECEE;
$base-200: #CFD9DD;
$base-300: #ADBDC3;
$base-400: #8BA0A7;
$base-500: #6B8189;
$base-600: #56666B;
$base-700: #414B4E;
$base-800: #2C3235;
$base-900: #1C2021;
$base-hover: #4E656E;
$base-subtle: #D0D8DB;

{
    "color": {
        "base": {
            "value": "#617F8A",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F8F9",
                "type": "color"
            },
            "100": {
                "value": "#E7ECEE",
                "type": "color"
            },
            "200": {
                "value": "#CFD9DD",
                "type": "color"
            },
            "300": {
                "value": "#ADBDC3",
                "type": "color"
            },
            "400": {
                "value": "#8BA0A7",
                "type": "color"
            },
            "500": {
                "value": "#6B8189",
                "type": "color"
            },
            "600": {
                "value": "#56666B",
                "type": "color"
            },
            "700": {
                "value": "#414B4E",
                "type": "color"
            },
            "800": {
                "value": "#2C3235",
                "type": "color"
            },
            "900": {
                "value": "#1C2021",
                "type": "color"
            }
        }
    }
}

Palettes built on #617F8A

Color Lab

Pairs with #617F8A

UI roles & guardrails

In real applications

Scales

Every model

Export