Nearest named color: Cerulean
#4B4EAF
#4B4EAF
Nearest named
Cerulean
Family
Blue
Lightness
47.6%
Chroma
0.151
Hue angle
277.6°
Temperature
Cool
Contrast on white
6.98:1 · AA
Contrast on black
2.66:1 · Fail
Web-safe
#336699
CSS oklch()
48% 0.15 278

#4B4EAF is a mid-toned, cool violet. 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 #4B4EAF

Not just a swatch — here's how #4B4EAF works with other colors. Named schemes with #4B4EAF in its natural role, and a note on why the supporting colors balance it.

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.

Vintage Leather Lead · 5 colors

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

Modern Café Dominant · 5 colors

Cerulean anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

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.

Build a working theme in the generator →

Color Lab

How #4B4EAF 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 20/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 36/100
Low
Middle-weight — neither delicate nor heavy.
Depth 54/100
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 39/100
Low
A faint retro warmth without tipping into sepia.
Luxury 57/100
Moderate
Restrained and premium — deep, quiet, high-end packaging and fashion.
Brand distinctiveness 41/100
Moderate
Recognisable but shares space with nearby hues.
UI accent fit 95/100
Very high
Strong interactive accent — visible and can carry a legible label.
Surface fit 9/100
Very low
Too saturated or mid-toned for big areas — keep it to accents.
Print safety 76/100
High
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #4B4EAF

For UI
For branding
For interior
For fashion
People also use #4B4EAF with

UI roles & guardrails

Primary action Safe as a filled button with white label. AA
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 7.0:1. Use
Subtle surface Use #DDDEEC for cards and hover fills. Tint 80
Avoid beside #694BAF — 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 #4B4EAF 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: #4B4EAF;
  --color-base-rgb: 75 78 175;
  --color-base-oklch: oklch(47.6% 0.151 277.6);
  --color-50: #F4F4FB;
  --color-100: #E2E3F3;
  --color-200: #C6C7E6;
  --color-300: #9EA0D1;
  --color-400: #787ABA;
  --color-500: #575A9E;
  --color-600: #484A7A;
  --color-700: #373858;
  --color-800: #27273A;
  --color-900: #191A24;
  --color-on-base: #FFFFFF;
}