What color is #105E5B?

#105E5B is a dark, vivid cyan. In RGB it is rgb(16, 94, 91), and in HSL hsl(178, 71%, 22%).

Is #105E5B accessible as text?

On white, #105E5B has a contrast ratio of 7.57:1 (passes WCAG AA for body text); on black it is 2.77:1 (fails). For text placed on #105E5B, use white for the best readability.

What is the closest Tailwind color to #105E5B?

The nearest Tailwind CSS token is teal-800 (#005F5A).

What colors go well with #105E5B?

#105E5B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #601013. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #105E5B below.

Is #105E5B good for buttons?

#105E5B works well for buttons and highlights, but use white text on #105E5B — black text only reaches 2.77:1, below the 4.5:1 needed for normal-size labels.

Is #105E5B the same as CSS darkslategray?

No — #105E5B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#105E5B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #105E5B

Not just a swatch — here's how #105E5B works with other colors. Named schemes with #105E5B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #105E5B Accent #A7C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Dark 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 #105E5B Secondary #AEB4B8 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

Dark Slate 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 #105E5B Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #552341

Dark 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.

Modern Café Dominant · 5 colors

Dominant #105E5B Anchor #382B1E Surface #ECE4D0 Accent #819C71 Secondary #3A3833

Dark Slate Gray anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #105E5B Secondary #697F7D Support #979286 Ink #16140F

Dark 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 Dark Slate Gray carrying the quiet middle.

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Color Lab

How #105E5B 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 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 55/100

Moderate

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

Naturalness 16/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 60/100

Moderate

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

Brand distinctiveness 19/100

Very low

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

UI accent fit 71/100

High

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

Surface fit 35/100

Low

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #105E5B

For UI

For branding

For interior

For fashion

People also use #105E5B with

Sea Green Yale Blue Rosewood 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 7.6:1. Use

Subtle surface Use #C3ECEA for cards and hover fills. Tint 80

Avoid beside #104860 — 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 #105E5B 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: #105E5B;
  --color-base-rgb: 16 94 91;
  --color-base-oklch: oklch(43.8% 0.070 190.9);
  --color-50: #F1FDFD;
  --color-100: #DBFAF9;
  --color-200: #B9F3F1;
  --color-300: #8AE5E2;
  --color-400: #5ED4D0;
  --color-500: #3CB9B5;
  --color-600: #358D8A;
  --color-700: #2B6462;
  --color-800: #1F4240;
  --color-900: #152828;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F1FDFD',
    100: '#DBFAF9',
    200: '#B9F3F1',
    300: '#8AE5E2',
    400: '#5ED4D0',
    500: '#3CB9B5',
    600: '#358D8A',
    700: '#2B6462',
    800: '#1F4240',
    900: '#152828',
  },
}

$base: #105E5B;
$base-ink: #FFFFFF;
$base-50: #F1FDFD;
$base-100: #DBFAF9;
$base-200: #B9F3F1;
$base-300: #8AE5E2;
$base-400: #5ED4D0;
$base-500: #3CB9B5;
$base-600: #358D8A;
$base-700: #2B6462;
$base-800: #1F4240;
$base-900: #152828;
$base-hover: #0D4D4B;
$base-subtle: #A3E4E1;

{
    "color": {
        "base": {
            "value": "#105E5B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDFD",
                "type": "color"
            },
            "100": {
                "value": "#DBFAF9",
                "type": "color"
            },
            "200": {
                "value": "#B9F3F1",
                "type": "color"
            },
            "300": {
                "value": "#8AE5E2",
                "type": "color"
            },
            "400": {
                "value": "#5ED4D0",
                "type": "color"
            },
            "500": {
                "value": "#3CB9B5",
                "type": "color"
            },
            "600": {
                "value": "#358D8A",
                "type": "color"
            },
            "700": {
                "value": "#2B6462",
                "type": "color"
            },
            "800": {
                "value": "#1F4240",
                "type": "color"
            },
            "900": {
                "value": "#152828",
                "type": "color"
            }
        }
    }
}

Palettes built on #105E5B

Color Lab

Pairs with #105E5B

UI roles & guardrails

In real applications

Scales

Every model

Export