Nearest named color: Steel Blue
#3C85CA
#3C85CA
Nearest named
Steel Blue
Family
Blue
Lightness
60.3%
Chroma
0.128
Hue angle
249.7°
Temperature
Cool
Contrast on white
3.89:1 · AA Large
Contrast on black
4.78:1 · AA
Web-safe
#3399CC
CSS oklch()
60% 0.13 250

#3C85CA is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.

Palettes built on #3C85CA

Not just a swatch — here's how #3C85CA works with other colors. Named schemes with #3C85CA in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

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

Tech Product Signal · 5 colors

Steel 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 Steel Blue.

Vintage Leather Lead · 5 colors

Steel Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Berry & Cream Lead · 5 colors

Steel Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Steel 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 Steel Blue carrying the quiet middle.

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Color Lab

How #3C85CA 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 14/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 47/100
Moderate
Middle-weight — neither delicate nor heavy.
Depth 40/100
Moderate
Mid depth — usable as an accent or a muted ground.
Naturalness 0/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 44/100
Moderate
A faint retro warmth without tipping into sepia.
Luxury 47/100
Moderate
Understated — leans refined without going austere.
Brand distinctiveness 35/100
Low
Recognisable but shares space with nearby hues.
UI accent fit 91/100
Very high
Strong interactive accent — visible and can carry a legible label.
Surface fit 23/100
Low
Too saturated or mid-toned for big areas — keep it to accents.
Print safety 72/100
High
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3C85CA

For UI
For branding
For interior
For fashion
People also use #3C85CA 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 4.8:1. Use
Subtle surface Use #DCE6F0 for cards and hover fills. Tint 80
Avoid beside #3B55C9 — 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 #3C85CA 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: #3C85CA;
  --color-base-rgb: 60 133 202;
  --color-base-oklch: oklch(60.3% 0.128 249.7);
  --color-50: #F3F8FC;
  --color-100: #DEEBF7;
  --color-200: #BFD7ED;
  --color-300: #93B9DC;
  --color-400: #6A9BC8;
  --color-500: #487CAD;
  --color-600: #3D6284;
  --color-700: #30485E;
  --color-800: #23313E;
  --color-900: #171F26;
  --color-on-base: #141310;
}