What color is #4FB9E3?

#4FB9E3 is a medium, vivid cyan-blue. In RGB it is rgb(79, 185, 227), and in HSL hsl(197, 73%, 60%).

Is #4FB9E3 accessible as text?

On white, #4FB9E3 has a contrast ratio of 2.24:1 (fails WCAG AA for body text); on black it is 9.38:1 (passes). For text placed on #4FB9E3, use black for the best readability.

What is the closest Tailwind color to #4FB9E3?

The nearest Tailwind CSS token is cyan-500 (#00B8DB).

What colors go well with #4FB9E3?

#4FB9E3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E3794F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4FB9E3 below.

Is #4FB9E3 good for buttons?

#4FB9E3 works well for buttons and highlights, but use black text on #4FB9E3 — white text only reaches 2.24:1, below the 4.5:1 needed for normal-size labels.

Is #4FB9E3 the same as CSS deepskyblue?

No — #4FB9E3 is not the CSS named color deepskyblue, but deepskyblue (#00BFFF) is the closest CSS named color.

#4FB9E3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #4FB9E3

Not just a swatch — here's how #4FB9E3 works with other colors. Named schemes with #4FB9E3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #4FB9E3 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Picton 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 #4FB9E3 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Picton Blue 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 #4FB9E3 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #84DFFF

Picton 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 Picton Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #4FB9E3 Secondary #BDDEED Support #969386 Ink #16140F

Picton 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 Picton Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #4FB9E3 Anchor #372C1D Surface #EBE5D0 Accent #7C9D75 Secondary #393933

Picton 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 #4FB9E3 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 59/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 26/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 37/100

Low

A faint retro warmth without tipping into sepia.

Luxury 34/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 44/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 45/100

Moderate

Workable accent with care around contrast.

Surface fit 41/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 70/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #4FB9E3

For UI

For branding

For interior

For fashion

People also use #4FB9E3 with

Seafoam Green Royal Blue Burnt Sienna Platinum Charcoal

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 #E0EFF5 for cards and hover fills. Tint 80

Avoid beside #4F88E3 — 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 #4FB9E3 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: #4FB9E3;
  --color-base-rgb: 79 185 227;
  --color-base-oklch: oklch(74.1% 0.114 227.5);
  --color-50: #F1FAFD;
  --color-100: #DBF1FA;
  --color-200: #B9E3F4;
  --color-300: #88CCE7;
  --color-400: #5DB3D5;
  --color-500: #3A96BB;
  --color-600: #33758E;
  --color-700: #2A5465;
  --color-800: #1F3842;
  --color-900: #152328;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  picton-blue: {
    50: '#F1FAFD',
    100: '#DBF1FA',
    200: '#B9E3F4',
    300: '#88CCE7',
    400: '#5DB3D5',
    500: '#3A96BB',
    600: '#33758E',
    700: '#2A5465',
    800: '#1F3842',
    900: '#152328',
  },
}

$base: #4FB9E3;
$base-ink: #141310;
$base-50: #F1FAFD;
$base-100: #DBF1FA;
$base-200: #B9E3F4;
$base-300: #88CCE7;
$base-400: #5DB3D5;
$base-500: #3A96BB;
$base-600: #33758E;
$base-700: #2A5465;
$base-800: #1F3842;
$base-900: #152328;
$base-hover: #21A1D4;
$base-subtle: #CFE8F1;

{
    "color": {
        "base": {
            "value": "#4FB9E3",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FAFD",
                "type": "color"
            },
            "100": {
                "value": "#DBF1FA",
                "type": "color"
            },
            "200": {
                "value": "#B9E3F4",
                "type": "color"
            },
            "300": {
                "value": "#88CCE7",
                "type": "color"
            },
            "400": {
                "value": "#5DB3D5",
                "type": "color"
            },
            "500": {
                "value": "#3A96BB",
                "type": "color"
            },
            "600": {
                "value": "#33758E",
                "type": "color"
            },
            "700": {
                "value": "#2A5465",
                "type": "color"
            },
            "800": {
                "value": "#1F3842",
                "type": "color"
            },
            "900": {
                "value": "#152328",
                "type": "color"
            }
        }
    }
}

Palettes built on #4FB9E3

Color Lab

Pairs with #4FB9E3

UI roles & guardrails

In real applications

Scales

Every model

Export