What color is #3FBDEB?

#3FBDEB is a medium, vivid cyan-blue. In RGB it is rgb(63, 189, 235), and in HSL hsl(196, 81%, 58%).

Is #3FBDEB accessible as text?

On white, #3FBDEB has a contrast ratio of 2.17:1 (fails WCAG AA for body text); on black it is 9.69:1 (passes). For text placed on #3FBDEB, use black for the best readability.

What is the closest Tailwind color to #3FBDEB?

The nearest Tailwind CSS token is sky-400 (#00BCFF).

What colors go well with #3FBDEB?

#3FBDEB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EB6B3D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3FBDEB below.

Is #3FBDEB good for buttons?

#3FBDEB works well for buttons and highlights, but use black text on #3FBDEB — white text only reaches 2.17:1, below the 4.5:1 needed for normal-size labels.

Is #3FBDEB the same as CSS deepskyblue?

No — #3FBDEB is not the CSS named color deepskyblue, but deepskyblue (#00BFFF) is the closest CSS named color.

#3FBDEB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3FBDEB

Not just a swatch — here's how #3FBDEB works with other colors. Named schemes with #3FBDEB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3FBDEB Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1E344A

Deep Sky 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 #3FBDEB Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Deep Sky 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 #3FBDEB Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #7BE3FF

Deep Sky 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 Deep Sky Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #3FBDEB Secondary #BDE1F1 Support #969386 Ink #16140F

Deep Sky 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 Deep Sky Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #3FBDEB Anchor #372C1D Surface #EBE5D0 Accent #7C9D75 Secondary #393933

Deep Sky 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 #3FBDEB 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 13/100

Cool

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

Softness 57/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 25/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 32/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 67/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3FBDEB

For UI

For branding

For interior

For fashion

People also use #3FBDEB with

Seafoam Green Royal Blue Terracotta 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 8.6:1. Use

Subtle surface Use #DDEFF6 for cards and hover fills. Tint 80

Avoid beside #3D83EB — 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 #3FBDEB 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: #3FBDEB;
  --color-base-rgb: 63 189 235;
  --color-base-oklch: oklch(74.9% 0.126 226.9);
  --color-50: #F1FBFE;
  --color-100: #D9F3FC;
  --color-200: #B5E6F7;
  --color-300: #83D0EC;
  --color-400: #56B8DC;
  --color-500: #339CC2;
  --color-600: #2E7893;
  --color-700: #275768;
  --color-800: #1D3A44;
  --color-900: #14242A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  deep-sky-blue: {
    50: '#F1FBFE',
    100: '#D9F3FC',
    200: '#B5E6F7',
    300: '#83D0EC',
    400: '#56B8DC',
    500: '#339CC2',
    600: '#2E7893',
    700: '#275768',
    800: '#1D3A44',
    900: '#14242A',
  },
}

$base: #3FBDEB;
$base-ink: #141310;
$base-50: #F1FBFE;
$base-100: #D9F3FC;
$base-200: #B5E6F7;
$base-300: #83D0EC;
$base-400: #56B8DC;
$base-500: #339CC2;
$base-600: #2E7893;
$base-700: #275768;
$base-800: #1D3A44;
$base-900: #14242A;
$base-hover: #16A3D6;
$base-subtle: #CBE8F3;

{
    "color": {
        "base": {
            "value": "#3FBDEB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FBFE",
                "type": "color"
            },
            "100": {
                "value": "#D9F3FC",
                "type": "color"
            },
            "200": {
                "value": "#B5E6F7",
                "type": "color"
            },
            "300": {
                "value": "#83D0EC",
                "type": "color"
            },
            "400": {
                "value": "#56B8DC",
                "type": "color"
            },
            "500": {
                "value": "#339CC2",
                "type": "color"
            },
            "600": {
                "value": "#2E7893",
                "type": "color"
            },
            "700": {
                "value": "#275768",
                "type": "color"
            },
            "800": {
                "value": "#1D3A44",
                "type": "color"
            },
            "900": {
                "value": "#14242A",
                "type": "color"
            }
        }
    }
}

Palettes built on #3FBDEB

Color Lab

Pairs with #3FBDEB

UI roles & guardrails

In real applications

Scales

Every model

Export