Nearest named color: Seafoam
#ACE4DB
#ACE4DB
Nearest named
Seafoam
Family
Blue
Lightness
87.8%
Chroma
0.059
Hue angle
184.0°
Temperature
Cool
Contrast on white
1.41:1 · Fail
Contrast on black
13.16:1 · AAA
Web-safe
#99CCCC
CSS oklch()
88% 0.06 184

#ACE4DB is a soft, cool cyan. It holds up as a large surface and is too pale to lead as a primary accent.

Palettes built on #ACE4DB

Not just a swatch — here's how #ACE4DB works with other colors. Named schemes with #ACE4DB in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

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

Japanese Sand Base · 5 colors

Seafoam 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.

Coastal Morning Lead · 5 colors

Seafoam opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Minimal Editorial Surface · 5 colors

Seafoam 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 Seafoam carrying the quiet middle.

Tech Product Signal · 5 colors

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

Build a working theme in the generator →

Color Lab

How #ACE4DB 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 38/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 78/100
High
Soft and easy on the eye — gentle backdrops, calm surfaces.
Depth 12/100
Very low
Airy and open — recedes, leaves the composition light.
Naturalness 21/100
Low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 28/100
Low
A faint retro warmth without tipping into sepia.
Luxury 17/100
Very low
Playful and accessible rather than exclusive.
Brand distinctiveness 23/100
Low
Quiet and neutral — a supporting tone, not a signature.
UI accent fit 9/100
Very low
Weak as an action color — too pale, too dark or too muted to signal.
Surface fit 71/100
High
Calm enough for large fills — backgrounds, cards, sections.
Print safety 87/100
Very high
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #ACE4DB

For UI
For branding
For interior
For fashion

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 13.2:1. Use
Subtle surface Use #F0F8F7 for cards and hover fills. Tint 80
Avoid beside #AADAE4 — 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 #ACE4DB 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

Scales

ShadesBase darkened in 10% steps
TintsBase lifted toward white
TonesSaturation removed, lightness held
Monochromatic scaleDesign-system ready, 50–900

Every model

Export

:root {
  --color-base: #ACE4DB;
  --color-base-rgb: 172 228 219;
  --color-base-oklch: oklch(87.8% 0.059 184.0);
  --color-50: #F3FCFA;
  --color-100: #E0F6F2;
  --color-200: #C1EBE4;
  --color-300: #97D9CE;
  --color-400: #6FC3B5;
  --color-500: #4EA798;
  --color-600: #418176;
  --color-700: #335C55;
  --color-800: #243D39;
  --color-900: #182623;
  --color-on-base: #141310;
}