#405B71
Citadel

The Fang

Air

air
semi-opaque
blue

Color Information

HEX

#405B71

RGB

64, 91, 113

LAB

37.4, -3.7, -15.7

Closest catalog-color match

Skyline by Folk Art (ΔE 3.5)

Compatibility unverified: purpose: source not recorded or recognized; chemistry: source not recorded or recognized; application: candidate not recorded or recognized; effect: both products not recorded or recognized; finish: source not recorded or recognized; opacity: candidate not recorded or recognized. ΔE 3.5 gives a small catalog color gap. Check product specifications before substituting.

Cross-class catalog match

Iceberg Grey by Vallejo (ΔE 2.3)

opacity: semi-opaque vs transparent. ΔE 2.3 gives a small catalog color gap. Color-only comparison, not a functional substitute.

The Fang catalog data

More from Citadel

The Fang by Citadel is cataloged as air, semi-opaque, Air in the blue color family.

Catalog color data: HEX #405B71, RGB 64/91/113, and CIELAB 37.4/-3.7/-15.7. These values describe the listed digital color and can differ from dried paint under real-world lighting.

PaintAtlas lists 20 related catalog colors for this paint. ΔE measures the distance between the listed digital color values only; it does not describe opacity, finish behavior, or how the paint covers a surface. Cross-class matches, such as metallic against conventional paint, are shown as digital color only and are never presented as verified substitutes.

How PaintAtlas computes ΔE and catalog matches

How to choose a paint substitute

Closest catalog colors

Digital color matches

ΔE compares the listed catalog color values only, not finish, opacity, or coverage.

Cross-brand catalog colors

Digital color matches

ΔE compares the listed catalog color values only, not finish, opacity, or coverage.

Technical Color Analysis

The Fang is a cool blue with medium-dark value (L*: 37.4). This cool color has moderate saturation (chroma: 16.1), making it ideal for shadows and base layers.

LightnessL* 37.4

Medium-Dark

Temperaturecool

cool

SaturationC* 16.1

Moderate

Rich midtone leaning darker. Works well as a base coat color or for shaded areas.

Cool color that recedes visually. Creates depth and calm. Excellent for shadows when mixed with warm base tones.

Balanced saturation suitable for most painting needs. Natural-looking without being dull.

Recommended Undercoats

Grey

Neutral primer works well with medium-toned colors

Zenithal

Pre-establishes highlights and shadows for faster painting

Layering & Paint Order Guide

Shadow Paint
70% confidence

Dark value works well for shadow glazes or shading recesses

Suggested Layer Progression

Shadow
Base
Layer
Highlight

This paint works best as a shadow in your layering sequence.

Layering Tips

  • Apply each layer to progressively smaller areas, leaving previous layers visible
  • Maintain consistent light direction across all layers
  • Thin paints for smoother transitions between layers