What color is #37576F?

#37576F is a dark, muted cyan-blue. In RGB it is rgb(55, 87, 111), and in HSL hsl(206, 34%, 33%).

Is #37576F accessible as text?

On white, #37576F has a contrast ratio of 7.62:1 (passes WCAG AA for body text); on black it is 2.76:1 (fails). For text placed on #37576F, use white for the best readability.

What is the closest Tailwind color to #37576F?

The nearest Tailwind CSS token is cyan-800 (#005F78).

What colors go well with #37576F?

#37576F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #715038. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #37576F below.

Is #37576F good for buttons?

#37576F works well for buttons and highlights, but use white text on #37576F — black text only reaches 2.76:1, below the 4.5:1 needed for normal-size labels.

Is #37576F the same as CSS darkslategray?

No — #37576F is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#37576F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #37576F

Not just a swatch — here's how #37576F works with other colors. Named schemes with #37576F in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #37576F Accent #A5C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Iron 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 #37576F Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Iron 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 #37576F Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5C7990

Iron 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 Iron Gray.

Vintage Leather Lead · 5 colors

Lead #37576F Secondary #7F4439 Surface #E2DDC0 Accent #375245 Anchor #57233C

Iron 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 #37576F Secondary #717D86 Support #969386 Ink #16140F

Iron 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 Iron Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #37576F 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 34/100

Cool

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

Softness 43/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 54/100

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 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 58/100

Moderate

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 21/100

Low

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

UI accent fit 65/100

High

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

Surface fit 40/100

Low

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 #37576F

For UI

For branding

For interior

For fashion

People also use #37576F with

Dark Cyan Dark Slate Blue Coffee Gainsboro Charcoal

UI roles & guardrails

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

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 7.6:1. Use

Subtle surface Use #D4DEE5 for cards and hover fills. Tint 80

Avoid beside #384571 — 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 #37576F 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: #37576F;
  --color-base-rgb: 55 87 111;
  --color-base-oklch: oklch(44.2% 0.055 241.9);
  --color-50: #F4F8FA;
  --color-100: #E3ECF2;
  --color-200: #C8D8E4;
  --color-300: #A2BBCE;
  --color-400: #7D9DB5;
  --color-500: #5C7E98;
  --color-600: #4C6476;
  --color-700: #3A4955;
  --color-800: #283239;
  --color-900: #1A1F23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  iron-gray: {
    50: '#F4F8FA',
    100: '#E3ECF2',
    200: '#C8D8E4',
    300: '#A2BBCE',
    400: '#7D9DB5',
    500: '#5C7E98',
    600: '#4C6476',
    700: '#3A4955',
    800: '#283239',
    900: '#1A1F23',
  },
}

$base: #37576F;
$base-ink: #FFFFFF;
$base-50: #F4F8FA;
$base-100: #E3ECF2;
$base-200: #C8D8E4;
$base-300: #A2BBCE;
$base-400: #7D9DB5;
$base-500: #5C7E98;
$base-600: #4C6476;
$base-700: #3A4955;
$base-800: #283239;
$base-900: #1A1F23;
$base-hover: #2C465A;
$base-subtle: #BFCED9;

{
    "color": {
        "base": {
            "value": "#37576F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E3ECF2",
                "type": "color"
            },
            "200": {
                "value": "#C8D8E4",
                "type": "color"
            },
            "300": {
                "value": "#A2BBCE",
                "type": "color"
            },
            "400": {
                "value": "#7D9DB5",
                "type": "color"
            },
            "500": {
                "value": "#5C7E98",
                "type": "color"
            },
            "600": {
                "value": "#4C6476",
                "type": "color"
            },
            "700": {
                "value": "#3A4955",
                "type": "color"
            },
            "800": {
                "value": "#283239",
                "type": "color"
            },
            "900": {
                "value": "#1A1F23",
                "type": "color"
            }
        }
    }
}

Palettes built on #37576F

Color Lab

Pairs with #37576F

UI roles & guardrails

In real applications

Scales

Every model

Export