What color is #145665?

#145665 is a dark cyan. In RGB it is rgb(20, 86, 101), and in HSL hsl(191, 67%, 24%).

Is #145665 accessible as text?

On white, #145665 has a contrast ratio of 8.24:1 (passes WCAG AA for body text); on black it is 2.55:1 (fails). For text placed on #145665, use white for the best readability.

What is the closest Tailwind color to #145665?

The nearest Tailwind CSS token is cyan-900 (#104E64).

What colors go well with #145665?

#145665 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #662314. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #145665 below.

Is #145665 good for buttons?

#145665 works well for buttons and highlights, but use white text on #145665 — black text only reaches 2.55:1, below the 4.5:1 needed for normal-size labels.

Is #145665 the same as CSS darkslategray?

No — #145665 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#145665 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #145665

Not just a swatch — here's how #145665 works with other colors. Named schemes with #145665 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #145665 Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

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 #145665 Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 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.

Tech Product Signal · 5 colors

Signal #145665 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #437886

Dark 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 Dark Slate Gray.

Vintage Leather Lead · 5 colors

Lead #145665 Secondary #705116 Surface #E3DCC0 Accent #395244 Anchor #56233E

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #145665 Secondary #66787E Support #969386 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.

Build a working theme in the generator →

Color Lab

How #145665 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 31/100

Cool

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

Softness 40/100

Low

Middle-weight — neither delicate nor heavy.

Depth 56/100

Moderate

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

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 61/100

High

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

Brand distinctiveness 18/100

Very 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 37/100

Low

Usable as a tinted surface in measured doses.

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #145665

For UI

For branding

For interior

For fashion

People also use #145665 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 8.2:1. Use

Subtle surface Use #C6E4EB for cards and hover fills. Tint 80

Avoid beside #143C66 — 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 #145665 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: #145665;
  --color-base-rgb: 20 86 101;
  --color-base-oklch: oklch(42.0% 0.067 216.8);
  --color-50: #F2FBFD;
  --color-100: #DCF4F9;
  --color-200: #BBE7F1;
  --color-300: #8CD3E3;
  --color-400: #62BCD0;
  --color-500: #3FA0B5;
  --color-600: #377B8B;
  --color-700: #2C5962;
  --color-800: #203B41;
  --color-900: #162428;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F2FBFD',
    100: '#DCF4F9',
    200: '#BBE7F1',
    300: '#8CD3E3',
    400: '#62BCD0',
    500: '#3FA0B5',
    600: '#377B8B',
    700: '#2C5962',
    800: '#203B41',
    900: '#162428',
  },
}

$base: #145665;
$base-ink: #FFFFFF;
$base-50: #F2FBFD;
$base-100: #DCF4F9;
$base-200: #BBE7F1;
$base-300: #8CD3E3;
$base-400: #62BCD0;
$base-500: #3FA0B5;
$base-600: #377B8B;
$base-700: #2C5962;
$base-800: #203B41;
$base-900: #162428;
$base-hover: #104652;
$base-subtle: #A7D8E2;

{
    "color": {
        "base": {
            "value": "#145665",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FBFD",
                "type": "color"
            },
            "100": {
                "value": "#DCF4F9",
                "type": "color"
            },
            "200": {
                "value": "#BBE7F1",
                "type": "color"
            },
            "300": {
                "value": "#8CD3E3",
                "type": "color"
            },
            "400": {
                "value": "#62BCD0",
                "type": "color"
            },
            "500": {
                "value": "#3FA0B5",
                "type": "color"
            },
            "600": {
                "value": "#377B8B",
                "type": "color"
            },
            "700": {
                "value": "#2C5962",
                "type": "color"
            },
            "800": {
                "value": "#203B41",
                "type": "color"
            },
            "900": {
                "value": "#162428",
                "type": "color"
            }
        }
    }
}