What color is #40BFBF?

#40BFBF is a medium cyan. In RGB it is rgb(64, 191, 191), and in HSL hsl(180, 50%, 50%).

Is #40BFBF accessible as text?

On white, #40BFBF has a contrast ratio of 2.23:1 (fails WCAG AA for body text); on black it is 9.42:1 (passes). For text placed on #40BFBF, use black for the best readability.

What is the closest Tailwind color to #40BFBF?

The nearest Tailwind CSS token is teal-500 (#00BBA7).

What colors go well with #40BFBF?

#40BFBF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BF4040. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40BFBF below.

Is #40BFBF good for buttons?

#40BFBF works well for buttons and highlights, but use black text on #40BFBF — white text only reaches 2.23:1, below the 4.5:1 needed for normal-size labels.

Is #40BFBF the same as CSS darkturquoise?

No — #40BFBF is not the CSS named color darkturquoise, but darkturquoise (#00CED1) is the closest CSS named color.

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

Palettes built on #40BFBF

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

Coastal Morning Lead · 5 colors

Lead #40BFBF Accent #A6C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1D3549

Tiffany 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 #40BFBF Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A4 Anchor #2E3236

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #40BFBF Secondary #BBDFDE Support #979286 Ink #16140F

Tiffany 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 Tiffany Blue carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #40BFBF Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #7BE4E4

Tiffany 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 Tiffany Blue.

Modern Café Dominant · 5 colors

Dominant #40BFBF Anchor #382C1E Surface #ECE4D0 Accent #819C72 Secondary #3A3933

Tiffany 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.

Build a working theme in the generator →

Color Lab

How #40BFBF 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 24/100

Cool

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

Softness 59/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 26/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 16/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 34/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 42/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 46/100

Moderate

Workable accent with care around contrast.

Surface fit 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #40BFBF

For UI

For branding

For interior

For fashion

People also use #40BFBF with

Emerald Green Steel Blue Brick Red 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 8.3:1. Use

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

Avoid beside #4095BF — 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 #40BFBF 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: #40BFBF;
  --color-base-rgb: 64 191 191;
  --color-base-oklch: oklch(73.7% 0.109 195.1);
  --color-50: #F3FCFC;
  --color-100: #E0F5F5;
  --color-200: #C2EBEB;
  --color-300: #97D8D8;
  --color-400: #70C2C2;
  --color-500: #4EA6A6;
  --color-600: #428080;
  --color-700: #335C5C;
  --color-800: #243C3C;
  --color-900: #182525;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  tiffany-blue: {
    50: '#F3FCFC',
    100: '#E0F5F5',
    200: '#C2EBEB',
    300: '#97D8D8',
    400: '#70C2C2',
    500: '#4EA6A6',
    600: '#428080',
    700: '#335C5C',
    800: '#243C3C',
    900: '#182525',
  },
}

$base: #40BFBF;
$base-ink: #141310;
$base-50: #F3FCFC;
$base-100: #E0F5F5;
$base-200: #C2EBEB;
$base-300: #97D8D8;
$base-400: #70C2C2;
$base-500: #4EA6A6;
$base-600: #428080;
$base-700: #335C5C;
$base-800: #243C3C;
$base-900: #182525;
$base-hover: #339999;
$base-subtle: #CAE7E7;

{
    "color": {
        "base": {
            "value": "#40BFBF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCFC",
                "type": "color"
            },
            "100": {
                "value": "#E0F5F5",
                "type": "color"
            },
            "200": {
                "value": "#C2EBEB",
                "type": "color"
            },
            "300": {
                "value": "#97D8D8",
                "type": "color"
            },
            "400": {
                "value": "#70C2C2",
                "type": "color"
            },
            "500": {
                "value": "#4EA6A6",
                "type": "color"
            },
            "600": {
                "value": "#428080",
                "type": "color"
            },
            "700": {
                "value": "#335C5C",
                "type": "color"
            },
            "800": {
                "value": "#243C3C",
                "type": "color"
            },
            "900": {
                "value": "#182525",
                "type": "color"
            }
        }
    }
}

Palettes built on #40BFBF

Color Lab

Pairs with #40BFBF

UI roles & guardrails

In real applications

Scales

Every model

Export