Nearest named color: Air Force Blue
#718FAC
#718FAC
Nearest named
Air Force Blue
Family
Blue
Lightness
63.8%
Chroma
0.055
Hue angle
247.8°
Temperature
Cool
Contrast on white
3.37:1 · AA Large
Contrast on black
5.51:1 · AA
Web-safe
#669999
CSS oklch()
64% 0.06 248

#718FAC is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.

Palettes built on #718FAC

Not just a swatch — here's how #718FAC works with other colors. Named schemes with #718FAC in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Air Force Blue 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

Air Force Blue 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

Air Force Blue 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

Air Force 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 Air Force Blue.

Minimal Editorial Surface · 5 colors

Air Force 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 Air Force Blue carrying the quiet middle.

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Color Lab

How #718FAC 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 34/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 59/100
Moderate
Middle-weight — neither delicate nor heavy.
Depth 35/100
Low
Mid depth — usable as an accent or a muted ground.
Naturalness 0/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 43/100
Moderate
A faint retro warmth without tipping into sepia.
Luxury 41/100
Moderate
Understated — leans refined without going austere.
Brand distinctiveness 21/100
Low
Quiet and neutral — a supporting tone, not a signature.
UI accent fit 61/100
High
Strong interactive accent — visible and can carry a legible label.
Surface fit 49/100
Moderate
Usable as a tinted surface in measured doses.
Print safety 88/100
Very high
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #718FAC

For UI
For branding
For interior
For fashion
People also use #718FAC with

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA
Body text Do not use for body copy on light surfaces. Avoid
Large display Fine for headings 24px+ on white. Pass
Background Pair with #141310 text at 5.5:1. Use
Subtle surface Use #E4E9ED for cards and hover fills. Tint 80
Avoid beside #727CAC — 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 #718FAC at work across the surfaces designers actually ship.

Website / UI
Northwind Sign up
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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

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: #718FAC;
  --color-base-rgb: 113 143 172;
  --color-base-oklch: oklch(63.8% 0.055 247.8);
  --color-50: #F5F7FA;
  --color-100: #E5EBF0;
  --color-200: #CCD7E1;
  --color-300: #A7B8C8;
  --color-400: #839AAF;
  --color-500: #647B91;
  --color-600: #516171;
  --color-700: #3D4852;
  --color-800: #2A3137;
  --color-900: #1B1F22;
  --color-on-base: #141310;
}