Nearest named color: Cadet Blue
#54A5B5
#54A5B5
Nearest named
Cadet Blue
Family
Blue
Lightness
67.7%
Chroma
0.082
Hue angle
212.1°
Temperature
Cool
Contrast on white
2.83:1 · Fail
Contrast on black
6.57:1 · AA
Web-safe
#6699CC
CSS oklch()
68% 0.08 212

#54A5B5 is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.

Palettes built on #54A5B5

Not just a swatch — here's how #54A5B5 works with other colors. Named schemes with #54A5B5 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Cadet 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

Cadet 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

Cadet 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

Cadet 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 Cadet Blue.

Minimal Editorial Surface · 5 colors

Cadet 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 Cadet Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #54A5B5 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 27/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 59/100
Moderate
Middle-weight — neither delicate nor heavy.
Depth 32/100
Low
Airy and open — recedes, leaves the composition light.
Naturalness 4/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 48/100
Moderate
A faint retro warmth without tipping into sepia.
Luxury 39/100
Low
Understated — leans refined without going austere.
Brand distinctiveness 32/100
Low
Recognisable but shares space with nearby hues.
UI accent fit 60/100
Moderate
Workable accent with care around contrast.
Surface fit 44/100
Moderate
Usable as a tinted surface in measured doses.
Print safety 78/100
High
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #54A5B5

For UI
For branding
For interior
For fashion

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 Only on dark surfaces. Avoid
Background Pair with #141310 text at 6.6:1. Use
Subtle surface Use #DFEBEE for cards and hover fills. Tint 80
Avoid beside #5485B6 — 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 #54A5B5 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

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: #54A5B5;
  --color-base-rgb: 84 165 181;
  --color-base-oklch: oklch(67.7% 0.082 212.1);
  --color-50: #F4FAFB;
  --color-100: #E2F0F3;
  --color-200: #C6E1E6;
  --color-300: #9EC9D1;
  --color-400: #78AFBA;
  --color-500: #57929E;
  --color-600: #48717A;
  --color-700: #375258;
  --color-800: #27373A;
  --color-900: #192224;
  --color-on-base: #141310;
}