What color is #CDEFF9?

#CDEFF9 is a pale, soft cyan. In RGB it is rgb(205, 239, 249), and in HSL hsl(194, 79%, 89%).

Is #CDEFF9 accessible as text?

On white, #CDEFF9 has a contrast ratio of 1.21:1 (fails WCAG AA for body text); on black it is 17.31:1 (passes). For text placed on #CDEFF9, use black for the best readability.

What is the closest Tailwind color to #CDEFF9?

The nearest Tailwind CSS token is blue-100 (#DBEAFE).

What colors go well with #CDEFF9?

#CDEFF9 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #F9D7CD. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #CDEFF9 below.

Is #CDEFF9 good for buttons?

#CDEFF9 works well for buttons and highlights, but use black text on #CDEFF9 — white text only reaches 1.21:1, below the 4.5:1 needed for normal-size labels.

Is #CDEFF9 the same as CSS lavender?

No — #CDEFF9 is not the CSS named color lavender, but lavender (#E6E6FA) is the closest CSS named color.

#CDEFF9 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #CDEFF9

Not just a swatch — here's how #CDEFF9 works with other colors. Named schemes with #CDEFF9 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #CDEFF9 Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 Anchor #2E3236

Lavender 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 #CDEFF9 Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

Lavender 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 #CDEFF9 Surface #ECEADC Highlight #F4F2E7 Secondary #B3B19F Ink #2A2723

Lavender 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 #CDEFF9 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #E2FFFF

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #CDEFF9 Secondary #F1FDFF Support #969386 Ink #16140F

Lavender 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 Lavender carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #CDEFF9 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 39/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 87/100

Very high

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

Depth 7/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 19/100

Very low

Clean and current — no dusty, aged cast.

Luxury 11/100

Very low

Playful and accessible rather than exclusive.

Brand distinctiveness 15/100

Very low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 4/100

Very low

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

Surface fit 82/100

Very high

Calm enough for large fills — backgrounds, cards, sections.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #CDEFF9

For UI

For branding

For interior

For fashion

People also use #CDEFF9 with

Celeste Periwinkle Almond 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 15.3:1. Use

Subtle surface Use #F6FBFD for cards and hover fills. Tint 80

Avoid beside #CDE0F9 — 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 #CDEFF9 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: #CDEFF9;
  --color-base-rgb: 205 239 249;
  --color-base-oklch: oklch(93.1% 0.038 217.4);
  --color-50: #F1FBFE;
  --color-100: #DAF4FC;
  --color-200: #B6E7F6;
  --color-300: #85D3EB;
  --color-400: #58BCDA;
  --color-500: #359FC0;
  --color-600: #307B92;
  --color-700: #285867;
  --color-800: #1D3B43;
  --color-900: #142429;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  lavender: {
    50: '#F1FBFE',
    100: '#DAF4FC',
    200: '#B6E7F6',
    300: '#85D3EB',
    400: '#58BCDA',
    500: '#359FC0',
    600: '#307B92',
    700: '#285867',
    800: '#1D3B43',
    900: '#142429',
  },
}

$base: #CDEFF9;
$base-ink: #141310;
$base-50: #F1FBFE;
$base-100: #DAF4FC;
$base-200: #B6E7F6;
$base-300: #85D3EB;
$base-400: #58BCDA;
$base-500: #359FC0;
$base-600: #307B92;
$base-700: #285867;
$base-800: #1D3B43;
$base-900: #142429;
$base-hover: #7CD5F0;
$base-subtle: #F2F9FC;

{
    "color": {
        "base": {
            "value": "#CDEFF9",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FBFE",
                "type": "color"
            },
            "100": {
                "value": "#DAF4FC",
                "type": "color"
            },
            "200": {
                "value": "#B6E7F6",
                "type": "color"
            },
            "300": {
                "value": "#85D3EB",
                "type": "color"
            },
            "400": {
                "value": "#58BCDA",
                "type": "color"
            },
            "500": {
                "value": "#359FC0",
                "type": "color"
            },
            "600": {
                "value": "#307B92",
                "type": "color"
            },
            "700": {
                "value": "#285867",
                "type": "color"
            },
            "800": {
                "value": "#1D3B43",
                "type": "color"
            },
            "900": {
                "value": "#142429",
                "type": "color"
            }
        }
    }
}

Palettes built on #CDEFF9

Color Lab

Pairs with #CDEFF9

UI roles & guardrails

In real applications

Scales

Every model

Export