What color is #40DEED?

#40DEED is a medium, vivid cyan. In RGB it is rgb(64, 222, 237), and in HSL hsl(185, 83%, 59%).

Is #40DEED accessible as text?

On white, #40DEED has a contrast ratio of 1.63:1 (fails WCAG AA for body text); on black it is 12.89:1 (passes). For text placed on #40DEED, use black for the best readability.

What is the closest Tailwind color to #40DEED?

The nearest Tailwind CSS token is cyan-300 (#53EAFD).

What colors go well with #40DEED?

#40DEED pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #ED4E40. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40DEED below.

Is #40DEED good for buttons?

#40DEED works well for buttons and highlights, but use black text on #40DEED — white text only reaches 1.63:1, below the 4.5:1 needed for normal-size labels.

Is #40DEED the same as CSS turquoise?

No — #40DEED is not the CSS named color turquoise, but turquoise (#40E0D0) is the closest CSS named color.

#40DEED Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #40DEED

Not just a swatch — here's how #40DEED works with other colors. Named schemes with #40DEED in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #40DEED Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Turquoise 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 #40DEED Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Turquoise 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 #40DEED Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #85FFFF

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #40DEED Secondary #D2FEFF Support #979286 Ink #16140F

Turquoise 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 Turquoise carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #40DEED Anchor #372C1D Surface #EBE5D0 Accent #7F9D73 Secondary #3A3933

Turquoise 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.

Build a working theme in the generator →

Color Lab

How #40DEED 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 16/100

Cool

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

Softness 63/100

High

Soft and easy on the eye — gentle backdrops, calm surfaces.

Depth 18/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 8/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 24/100

Low

Playful and accessible rather than exclusive.

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 22/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 45/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #40DEED

For UI

For branding

For interior

For fashion

People also use #40DEED with

Light Green Azure Cinnabar Platinum Dark Slate Gray

UI roles & guardrails

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

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

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 11.4:1. Use

Subtle surface Use #DEF5F7 for cards and hover fills. Tint 80

Avoid beside #40A5ED — 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 #40DEED 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: #40DEED;
  --color-base-rgb: 64 222 237;
  --color-base-oklch: oklch(82.7% 0.127 204.5);
  --color-50: #F0FDFE;
  --color-100: #D9FAFD;
  --color-200: #B4F2F8;
  --color-300: #82E4ED;
  --color-400: #54D2DE;
  --color-500: #31B7C3;
  --color-600: #2D8C95;
  --color-700: #266369;
  --color-800: #1C4144;
  --color-900: #13282A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  turquoise: {
    50: '#F0FDFE',
    100: '#D9FAFD',
    200: '#B4F2F8',
    300: '#82E4ED',
    400: '#54D2DE',
    500: '#31B7C3',
    600: '#2D8C95',
    700: '#266369',
    800: '#1C4144',
    900: '#13282A',
  },
}

$base: #40DEED;
$base-ink: #141310;
$base-50: #F0FDFE;
$base-100: #D9FAFD;
$base-200: #B4F2F8;
$base-300: #82E4ED;
$base-400: #54D2DE;
$base-500: #31B7C3;
$base-600: #2D8C95;
$base-700: #266369;
$base-800: #1C4144;
$base-900: #13282A;
$base-hover: #14CCDC;
$base-subtle: #CCF0F3;

{
    "color": {
        "base": {
            "value": "#40DEED",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FDFE",
                "type": "color"
            },
            "100": {
                "value": "#D9FAFD",
                "type": "color"
            },
            "200": {
                "value": "#B4F2F8",
                "type": "color"
            },
            "300": {
                "value": "#82E4ED",
                "type": "color"
            },
            "400": {
                "value": "#54D2DE",
                "type": "color"
            },
            "500": {
                "value": "#31B7C3",
                "type": "color"
            },
            "600": {
                "value": "#2D8C95",
                "type": "color"
            },
            "700": {
                "value": "#266369",
                "type": "color"
            },
            "800": {
                "value": "#1C4144",
                "type": "color"
            },
            "900": {
                "value": "#13282A",
                "type": "color"
            }
        }
    }
}