What color is #409DA5?

#409DA5 is a medium cyan. In RGB it is rgb(64, 157, 165), and in HSL hsl(185, 44%, 45%).

Is #409DA5 accessible as text?

On white, #409DA5 has a contrast ratio of 3.19:1 (fails WCAG AA for body text); on black it is 6.58:1 (passes). For text placed on #409DA5, use black for the best readability.

What is the closest Tailwind color to #409DA5?

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

What colors go well with #409DA5?

#409DA5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A54940. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #409DA5 below.

Is #409DA5 good for buttons?

#409DA5 works well for buttons and highlights, but use black text on #409DA5 — white text only reaches 3.19:1, below the 4.5:1 needed for normal-size labels.

Is #409DA5 the same as CSS cadetblue?

No — #409DA5 is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#409DA5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #409DA5

Not just a swatch — here's how #409DA5 works with other colors. Named schemes with #409DA5 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #409DA5 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Cadet 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 #409DA5 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Cadet 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 #409DA5 Surface #EDEADC Highlight #F5F2E7 Secondary #B4B19F Ink #2A2723

Cadet 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 #409DA5 Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #72C1C9

Cadet 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 Cadet Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #409DA5 Secondary #A3BFC1 Support #979286 Ink #16140F

Cadet 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 Cadet Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #409DA5 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 27/100

Cool

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

Softness 55/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

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 53/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 71/100

High

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

Surface fit 40/100

Low

Usable as a tinted surface in measured doses.

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #409DA5

For UI

For branding

For interior

For fashion

People also use #409DA5 with

Medium Sea Green Lapis Lazuli Sienna 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 5.8:1. Use

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

Avoid beside #407BA5 — 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 #409DA5 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: #409DA5;
  --color-base-rgb: 64 157 165;
  --color-base-oklch: oklch(64.4% 0.087 203.1);
  --color-50: #F4FAFB;
  --color-100: #E1F3F4;
  --color-200: #C4E5E8;
  --color-300: #9BCFD4;
  --color-400: #75B7BD;
  --color-500: #549BA1;
  --color-600: #46787C;
  --color-700: #365659;
  --color-800: #26393B;
  --color-900: #192425;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cadet-blue: {
    50: '#F4FAFB',
    100: '#E1F3F4',
    200: '#C4E5E8',
    300: '#9BCFD4',
    400: '#75B7BD',
    500: '#549BA1',
    600: '#46787C',
    700: '#365659',
    800: '#26393B',
    900: '#192425',
  },
}

$base: #409DA5;
$base-ink: #141310;
$base-50: #F4FAFB;
$base-100: #E1F3F4;
$base-200: #C4E5E8;
$base-300: #9BCFD4;
$base-400: #75B7BD;
$base-500: #549BA1;
$base-600: #46787C;
$base-700: #365659;
$base-800: #26393B;
$base-900: #192425;
$base-hover: #337D84;
$base-subtle: #C7E1E3;

{
    "color": {
        "base": {
            "value": "#409DA5",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FAFB",
                "type": "color"
            },
            "100": {
                "value": "#E1F3F4",
                "type": "color"
            },
            "200": {
                "value": "#C4E5E8",
                "type": "color"
            },
            "300": {
                "value": "#9BCFD4",
                "type": "color"
            },
            "400": {
                "value": "#75B7BD",
                "type": "color"
            },
            "500": {
                "value": "#549BA1",
                "type": "color"
            },
            "600": {
                "value": "#46787C",
                "type": "color"
            },
            "700": {
                "value": "#365659",
                "type": "color"
            },
            "800": {
                "value": "#26393B",
                "type": "color"
            },
            "900": {
                "value": "#192425",
                "type": "color"
            }
        }
    }
}

Palettes built on #409DA5

Color Lab

Pairs with #409DA5

UI roles & guardrails

In real applications

Scales

Every model

Export