Nearest named color: Cerulean
#3C3ABB
#3C3ABB
Nearest named
Cerulean
Family
Blue
Lightness
44.1%
Chroma
0.196
Hue angle
275.5°
Temperature
Cool
Contrast on white
8.35:1 · AAA
Contrast on black
2.22:1 · Fail
Web-safe
#3333CC
CSS oklch()
44% 0.20 275

#3C3ABB is a mid-toned, cool violet. On the Color Lab it reads clean and engineered, bold and ownable. It carries a legible label as a UI accent and sits well as a supporting tone.

Palettes built on #3C3ABB

Not just a swatch — here's how #3C3ABB works with other colors. Named schemes with #3C3ABB in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

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

Berry & Cream Lead · 5 colors

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

Minimal Editorial Surface · 5 colors

Cerulean 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 Cerulean carrying the quiet middle.

Coastal Morning Lead · 5 colors

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

Sunset Warmth Glow · 5 colors

Cerulean glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #3C3ABB 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 15/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 29/100
Low
Firm and assertive — carries weight and contrast.
Depth 60/100
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 23/100
Low
Clean and current — no dusty, aged cast.
Luxury 56/100
Moderate
Restrained and premium — deep, quiet, high-end packaging and fashion.
Brand distinctiveness 76/100
High
Bold and ownable — memorable as a primary brand color.
UI accent fit 77/100
High
Strong interactive accent — visible and can carry a legible label.
Surface fit 11/100
Very low
Too saturated or mid-toned for big areas — keep it to accents.
Print safety 69/100
High
Prints close, with a slight loss of vibrancy.

Pairs with #3C3ABB

For UI
For branding
For interior
For fashion

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA
Body text Passes on white at 16px and above. Pass
Large display Fine for headings 24px+ on white. Pass
Background Pair with white text at 8.4:1. Use
Subtle surface Use #DBDAEF for cards and hover fills. Tint 80
Avoid beside #673ABB — 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 #3C3ABB 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: #3C3ABB;
  --color-base-rgb: 60 58 187;
  --color-base-oklch: oklch(44.1% 0.196 275.5);
  --color-50: #F3F3FC;
  --color-100: #E0DFF6;
  --color-200: #C1C1EC;
  --color-300: #9795DA;
  --color-400: #6F6DC5;
  --color-500: #4D4CA9;
  --color-600: #414082;
  --color-700: #33325D;
  --color-800: #24243D;
  --color-900: #181726;
  --color-on-base: #FFFFFF;
}