What color is #508E91?

#508E91 is a medium, muted cyan. In RGB it is rgb(80, 142, 145), and in HSL hsl(183, 29%, 44%).

Is #508E91 accessible as text?

On white, #508E91 has a contrast ratio of 3.74:1 (fails WCAG AA for body text); on black it is 5.62:1 (passes). For text placed on #508E91, use black for the best readability.

What is the closest Tailwind color to #508E91?

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

What colors go well with #508E91?

#508E91 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #915350. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #508E91 below.

Is #508E91 good for buttons?

#508E91 works well for buttons and highlights, but use black text on #508E91 — white text only reaches 3.74:1, below the 4.5:1 needed for normal-size labels.

Is #508E91 the same as CSS darkcyan?

No — #508E91 is not the CSS named color darkcyan, but darkcyan (#008B8B) is the closest CSS named color.

#508E91 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #508E91

Not just a swatch — here's how #508E91 works with other colors. Named schemes with #508E91 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #508E91 Accent #A6C4BD 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.

Nordic Calm Accent · 5 colors

Accent #508E91 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.

Vintage Leather Lead · 5 colors

Lead #508E91 Secondary #715017 Surface #E3DCC0 Accent #395143 Anchor #552340

Air Force 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.

Modern Café Dominant · 5 colors

Dominant #508E91 Anchor #382C1D Surface #EBE4D0 Accent #809D72 Secondary #3A3933

Air Force Blue 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 #508E91 Secondary #9DB1B2 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 #508E91 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 55/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 38/100

Low

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

Naturalness 8/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 50/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 25/100

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 43/100

Moderate

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 #508E91

For UI

For branding

For interior

For fashion

People also use #508E91 with

Jungle Green Teal Blue Chestnut 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 5.0:1. Use

Subtle surface Use #DCE8E8 for cards and hover fills. Tint 80

Avoid beside #507891 — 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 #508E91 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: #508E91;
  --color-base-rgb: 80 142 145;
  --color-base-oklch: oklch(60.6% 0.064 199.6);
  --color-50: #F5FAFA;
  --color-100: #E4F0F1;
  --color-200: #CAE1E2;
  --color-300: #A5C8CA;
  --color-400: #81AFB1;
  --color-500: #619194;
  --color-600: #4F7173;
  --color-700: #3C5253;
  --color-800: #293737;
  --color-900: #1B2223;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  air-force-blue: {
    50: '#F5FAFA',
    100: '#E4F0F1',
    200: '#CAE1E2',
    300: '#A5C8CA',
    400: '#81AFB1',
    500: '#619194',
    600: '#4F7173',
    700: '#3C5253',
    800: '#293737',
    900: '#1B2223',
  },
}

$base: #508E91;
$base-ink: #141310;
$base-50: #F5FAFA;
$base-100: #E4F0F1;
$base-200: #CAE1E2;
$base-300: #A5C8CA;
$base-400: #81AFB1;
$base-500: #619194;
$base-600: #4F7173;
$base-700: #3C5253;
$base-800: #293737;
$base-900: #1B2223;
$base-hover: #407174;
$base-subtle: #CBDDDE;

{
    "color": {
        "base": {
            "value": "#508E91",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5FAFA",
                "type": "color"
            },
            "100": {
                "value": "#E4F0F1",
                "type": "color"
            },
            "200": {
                "value": "#CAE1E2",
                "type": "color"
            },
            "300": {
                "value": "#A5C8CA",
                "type": "color"
            },
            "400": {
                "value": "#81AFB1",
                "type": "color"
            },
            "500": {
                "value": "#619194",
                "type": "color"
            },
            "600": {
                "value": "#4F7173",
                "type": "color"
            },
            "700": {
                "value": "#3C5253",
                "type": "color"
            },
            "800": {
                "value": "#293737",
                "type": "color"
            },
            "900": {
                "value": "#1B2223",
                "type": "color"
            }
        }
    }
}

Palettes built on #508E91

Color Lab

Pairs with #508E91

UI roles & guardrails

In real applications

Scales

Every model

Export