What color is #63AFCF?

#63AFCF is a medium cyan-blue. In RGB it is rgb(99, 175, 207), and in HSL hsl(198, 53%, 60%).

Is #63AFCF accessible as text?

On white, #63AFCF has a contrast ratio of 2.45:1 (fails WCAG AA for body text); on black it is 8.56:1 (passes). For text placed on #63AFCF, use black for the best readability.

What is the closest Tailwind color to #63AFCF?

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

What colors go well with #63AFCF?

#63AFCF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CF8363. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #63AFCF below.

Is #63AFCF good for buttons?

#63AFCF works well for buttons and highlights, but use black text on #63AFCF — white text only reaches 2.45:1, below the 4.5:1 needed for normal-size labels.

Is #63AFCF the same as CSS cadetblue?

No — #63AFCF is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#63AFCF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #63AFCF

Not just a swatch — here's how #63AFCF works with other colors. Named schemes with #63AFCF in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #63AFCF Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Iceberg 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 #63AFCF Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Iceberg 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 #63AFCF Surface #ECEADC Highlight #F4F2E7 Secondary #B3B19F Ink #2A2723

Iceberg 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 #63AFCF Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #91D5F2

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #63AFCF Secondary #BCD5E0 Support #969386 Ink #16140F

Iceberg 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 Iceberg carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #63AFCF 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 61/100

High

Middle-weight — neither delicate nor heavy.

Depth 28/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 35/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 49/100

Moderate

Workable accent with care around contrast.

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #63AFCF

For UI

For branding

For interior

For fashion

People also use #63AFCF with

Turquoise Royal Blue Peru 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 7.6:1. Use

Subtle surface Use #E3EEF2 for cards and hover fills. Tint 80

Avoid beside #638BCF — 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 #63AFCF 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: #63AFCF;
  --color-base-rgb: 99 175 207;
  --color-base-oklch: oklch(71.7% 0.089 227.3);
  --color-50: #F3F9FC;
  --color-100: #DFEFF6;
  --color-200: #C1DFEC;
  --color-300: #95C5DA;
  --color-400: #6DABC5;
  --color-500: #4C8DA9;
  --color-600: #406E82;
  --color-700: #32505D;
  --color-800: #24363D;
  --color-900: #172126;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  iceberg: {
    50: '#F3F9FC',
    100: '#DFEFF6',
    200: '#C1DFEC',
    300: '#95C5DA',
    400: '#6DABC5',
    500: '#4C8DA9',
    600: '#406E82',
    700: '#32505D',
    800: '#24363D',
    900: '#172126',
  },
}

$base: #63AFCF;
$base-ink: #141310;
$base-50: #F3F9FC;
$base-100: #DFEFF6;
$base-200: #C1DFEC;
$base-300: #95C5DA;
$base-400: #6DABC5;
$base-500: #4C8DA9;
$base-600: #406E82;
$base-700: #32505D;
$base-800: #24363D;
$base-900: #172126;
$base-hover: #3A94BB;
$base-subtle: #D4E5ED;

{
    "color": {
        "base": {
            "value": "#63AFCF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FC",
                "type": "color"
            },
            "100": {
                "value": "#DFEFF6",
                "type": "color"
            },
            "200": {
                "value": "#C1DFEC",
                "type": "color"
            },
            "300": {
                "value": "#95C5DA",
                "type": "color"
            },
            "400": {
                "value": "#6DABC5",
                "type": "color"
            },
            "500": {
                "value": "#4C8DA9",
                "type": "color"
            },
            "600": {
                "value": "#406E82",
                "type": "color"
            },
            "700": {
                "value": "#32505D",
                "type": "color"
            },
            "800": {
                "value": "#24363D",
                "type": "color"
            },
            "900": {
                "value": "#172126",
                "type": "color"
            }
        }
    }
}

Palettes built on #63AFCF

Color Lab

Pairs with #63AFCF

UI roles & guardrails

In real applications

Scales

Every model

Export