What color is #164366?

#164366 is a dark cyan-blue. In RGB it is rgb(22, 67, 102), and in HSL hsl(206, 65%, 24%).

Is #164366 accessible as text?

On white, #164366 has a contrast ratio of 10.35:1 (passes WCAG AA for body text); on black it is 2.03:1 (fails). For text placed on #164366, use white for the best readability.

What is the closest Tailwind color to #164366?

The nearest Tailwind CSS token is sky-900 (#024A70).

What colors go well with #164366?

#164366 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #653815. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #164366 below.

Is #164366 good for buttons?

#164366 works well for buttons and highlights, but use white text on #164366 — black text only reaches 2.03:1, below the 4.5:1 needed for normal-size labels.

Is #164366 the same as CSS darkslategray?

No — #164366 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#164366 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #164366

Not just a swatch — here's how #164366 works with other colors. Named schemes with #164366 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #164366 Accent #A5C4C0 Surface #DEDBBF Secondary #9AA0A1 Anchor #20344A

Classic Blue 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 #164366 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Classic Blue 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 #164366 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3E6486

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

Vintage Leather Lead · 5 colors

Lead #164366 Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233C

Classic Blue 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 #164366 Secondary #5A6875 Support #969386 Ink #16140F

Classic Blue 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 Classic Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #164366 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 28/100

Cool

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 30/100

Low

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

UI accent fit 55/100

Moderate

Workable accent with care around contrast.

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 #164366

For UI

For branding

For interior

For fashion

People also use #164366 with

Teal Green Midnight Blue Sepia 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 10.4:1. Use

Subtle surface Use #C6DBEA for cards and hover fills. Tint 80

Avoid beside #152865 — 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 #164366 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: #164366;
  --color-base-rgb: 22 67 102;
  --color-base-oklch: oklch(37.1% 0.077 245.7);
  --color-50: #F2F8FD;
  --color-100: #DDECF9;
  --color-200: #BCDAF1;
  --color-300: #8EBDE2;
  --color-400: #63A0CF;
  --color-500: #4182B4;
  --color-600: #386689;
  --color-700: #2D4B62;
  --color-800: #213340;
  --color-900: #162027;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F2F8FD',
    100: '#DDECF9',
    200: '#BCDAF1',
    300: '#8EBDE2',
    400: '#63A0CF',
    500: '#4182B4',
    600: '#386689',
    700: '#2D4B62',
    800: '#213340',
    900: '#162027',
  },
}

$base: #164366;
$base-ink: #FFFFFF;
$base-50: #F2F8FD;
$base-100: #DDECF9;
$base-200: #BCDAF1;
$base-300: #8EBDE2;
$base-400: #63A0CF;
$base-500: #4182B4;
$base-600: #386689;
$base-700: #2D4B62;
$base-800: #213340;
$base-900: #162027;
$base-hover: #113551;
$base-subtle: #A8C9E2;

{
    "color": {
        "base": {
            "value": "#164366",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F8FD",
                "type": "color"
            },
            "100": {
                "value": "#DDECF9",
                "type": "color"
            },
            "200": {
                "value": "#BCDAF1",
                "type": "color"
            },
            "300": {
                "value": "#8EBDE2",
                "type": "color"
            },
            "400": {
                "value": "#63A0CF",
                "type": "color"
            },
            "500": {
                "value": "#4182B4",
                "type": "color"
            },
            "600": {
                "value": "#386689",
                "type": "color"
            },
            "700": {
                "value": "#2D4B62",
                "type": "color"
            },
            "800": {
                "value": "#213340",
                "type": "color"
            },
            "900": {
                "value": "#162027",
                "type": "color"
            }
        }
    }
}