What color is #124B4E?

#124B4E is a dark cyan. In RGB it is rgb(18, 75, 78), and in HSL hsl(183, 63%, 19%).

Is #124B4E accessible as text?

On white, #124B4E has a contrast ratio of 9.80:1 (passes WCAG AA for body text); on black it is 2.14:1 (fails). For text placed on #124B4E, use white for the best readability.

What is the closest Tailwind color to #124B4E?

The nearest Tailwind CSS token is teal-900 (#0B4F4A).

What colors go well with #124B4E?

#124B4E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4F1512. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #124B4E below.

Is #124B4E good for buttons?

#124B4E works well for buttons and highlights, but use white text on #124B4E — black text only reaches 2.14:1, below the 4.5:1 needed for normal-size labels.

Is #124B4E the same as CSS darkslategray?

No — #124B4E is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#124B4E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #124B4E

Not just a swatch — here's how #124B4E works with other colors. Named schemes with #124B4E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #124B4E Accent #A6C4BD Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Brunswick Green 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 #124B4E Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Brunswick Green 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 #124B4E Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #3D6C6E

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

Vintage Leather Lead · 5 colors

Lead #124B4E Secondary #715017 Surface #E3DCC0 Accent #395143 Anchor #552340

Brunswick Green 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 #124B4E Secondary #5C6C6D Support #979286 Ink #16140F

Brunswick Green 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 Brunswick Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #124B4E 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 35/100

Cool

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

Softness 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

Moderate

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

Naturalness 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 64/100

High

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

Brand distinctiveness 22/100

Low

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

UI accent fit 51/100

Moderate

Workable accent with care around contrast.

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #124B4E

For UI

For branding

For interior

For fashion

People also use #124B4E with

Dark Olive Green Prussian Blue Oxblood Platinum Dark Slate Gray

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 9.8:1. Use

Subtle surface Use #C3E7E8 for cards and hover fills. Tint 80

Avoid beside #12384F — 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 #124B4E 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: #124B4E;
  --color-base-rgb: 18 75 78;
  --color-base-oklch: oklch(37.9% 0.057 200.2);
  --color-50: #F2FCFD;
  --color-100: #DDF7F8;
  --color-200: #BDEDF0;
  --color-300: #8FDCE0;
  --color-400: #65C8CD;
  --color-500: #43ACB2;
  --color-600: #3A8488;
  --color-700: #2E5E61;
  --color-800: #213E40;
  --color-900: #162627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F2FCFD',
    100: '#DDF7F8',
    200: '#BDEDF0',
    300: '#8FDCE0',
    400: '#65C8CD',
    500: '#43ACB2',
    600: '#3A8488',
    700: '#2E5E61',
    800: '#213E40',
    900: '#162627',
  },
}

$base: #124B4E;
$base-ink: #FFFFFF;
$base-50: #F2FCFD;
$base-100: #DDF7F8;
$base-200: #BDEDF0;
$base-300: #8FDCE0;
$base-400: #65C8CD;
$base-500: #43ACB2;
$base-600: #3A8488;
$base-700: #2E5E61;
$base-800: #213E40;
$base-900: #162627;
$base-hover: #0E3D3F;
$base-subtle: #A3DCDF;

{
    "color": {
        "base": {
            "value": "#124B4E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCFD",
                "type": "color"
            },
            "100": {
                "value": "#DDF7F8",
                "type": "color"
            },
            "200": {
                "value": "#BDEDF0",
                "type": "color"
            },
            "300": {
                "value": "#8FDCE0",
                "type": "color"
            },
            "400": {
                "value": "#65C8CD",
                "type": "color"
            },
            "500": {
                "value": "#43ACB2",
                "type": "color"
            },
            "600": {
                "value": "#3A8488",
                "type": "color"
            },
            "700": {
                "value": "#2E5E61",
                "type": "color"
            },
            "800": {
                "value": "#213E40",
                "type": "color"
            },
            "900": {
                "value": "#162627",
                "type": "color"
            }
        }
    }
}

Palettes built on #124B4E

Color Lab

Pairs with #124B4E

UI roles & guardrails

In real applications

Scales

Every model

Export