What color is #5B919A?

#5B919A is a medium, muted cyan. In RGB it is rgb(91, 145, 154), and in HSL hsl(189, 26%, 48%).

Is #5B919A accessible as text?

On white, #5B919A has a contrast ratio of 3.52:1 (fails WCAG AA for body text); on black it is 5.96:1 (passes). For text placed on #5B919A, use black for the best readability.

What is the closest Tailwind color to #5B919A?

The nearest Tailwind CSS token is teal-600 (#009689).

What colors go well with #5B919A?

#5B919A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9A645B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #5B919A below.

Is #5B919A good for buttons?

#5B919A works well for buttons and highlights, but use black text on #5B919A — white text only reaches 3.52:1, below the 4.5:1 needed for normal-size labels.

Is #5B919A the same as CSS cadetblue?

No — #5B919A is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#5B919A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #5B919A

Not just a swatch — here's how #5B919A works with other colors. Named schemes with #5B919A in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #5B919A Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Air Force Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Coastal Morning Lead · 5 colors

Lead #5B919A Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Air Force Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Japanese Sand Base · 5 colors

Base #5B919A Surface #ECEADC Highlight #F4F2E7 Secondary #B4B19F Ink #2A2723

Air Force Blue sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Tech Product Signal · 5 colors

Signal #5B919A Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #84B5BE

Air Force 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 Air Force Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #5B919A Secondary #A4B6B9 Support #979286 Ink #16140F

Air Force 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 Air Force Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #5B919A 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 57/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 36/100

Low

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

Naturalness 4/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 23/100

Low

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

UI accent fit 66/100

High

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

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #5B919A

For UI

For branding

For interior

For fashion

People also use #5B919A with

Verdigris Very Peri Mauve Taupe Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 5.3:1. Use

Subtle surface Use #E0E8E9 for cards and hover fills. Tint 80

Avoid beside #5B7B9A — 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 #5B919A 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: #5B919A;
  --color-base-rgb: 91 145 154;
  --color-base-oklch: oklch(62.2% 0.059 209.1);
  --color-50: #F5F9FA;
  --color-100: #E5EFF0;
  --color-200: #CCDEE1;
  --color-300: #A7C3C8;
  --color-400: #83A8AF;
  --color-500: #648A91;
  --color-600: #516C71;
  --color-700: #3D4F52;
  --color-800: #2A3537;
  --color-900: #1B2122;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  air-force-blue: {
    50: '#F5F9FA',
    100: '#E5EFF0',
    200: '#CCDEE1',
    300: '#A7C3C8',
    400: '#83A8AF',
    500: '#648A91',
    600: '#516C71',
    700: '#3D4F52',
    800: '#2A3537',
    900: '#1B2122',
  },
}

$base: #5B919A;
$base-ink: #141310;
$base-50: #F5F9FA;
$base-100: #E5EFF0;
$base-200: #CCDEE1;
$base-300: #A7C3C8;
$base-400: #83A8AF;
$base-500: #648A91;
$base-600: #516C71;
$base-700: #3D4F52;
$base-800: #2A3537;
$base-900: #1B2122;
$base-hover: #48747B;
$base-subtle: #CFDDDF;

{
    "color": {
        "base": {
            "value": "#5B919A",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F9FA",
                "type": "color"
            },
            "100": {
                "value": "#E5EFF0",
                "type": "color"
            },
            "200": {
                "value": "#CCDEE1",
                "type": "color"
            },
            "300": {
                "value": "#A7C3C8",
                "type": "color"
            },
            "400": {
                "value": "#83A8AF",
                "type": "color"
            },
            "500": {
                "value": "#648A91",
                "type": "color"
            },
            "600": {
                "value": "#516C71",
                "type": "color"
            },
            "700": {
                "value": "#3D4F52",
                "type": "color"
            },
            "800": {
                "value": "#2A3537",
                "type": "color"
            },
            "900": {
                "value": "#1B2122",
                "type": "color"
            }
        }
    }
}

Palettes built on #5B919A

Color Lab

Pairs with #5B919A

UI roles & guardrails

In real applications

Scales

Every model

Export