# Dulux Breton Blue

Source: [https://plan-home.com/color/breton-blue](https://plan-home.com/color/breton-blue)

Dulux Breton Blue 30BB 10/112 is a muted, deep blue with a noticeable grey cast, giving it the character of a weathered slate rather than a bright marine tone. Its low-to-medium brightness helps it read as grounded and substantial on walls, especially in studies, dining rooms, or bedrooms with plenty of natural texture. In daylight, Breton Blue can show its cool blue character more clearly, while evening lighting tends to pull forward its smoky charcoal quality. Use it on cabinetry or a single architectural feature alongside pale oak, brushed nickel, soft white, and warm off-white finishes. For a stronger contrast, pair this shade with chalky beige or muted clay accents rather than crisp, icy whites.

## Color details
- **Brand or system:** Dulux
- **Color name:** Breton Blue
- **Color code:** 30BB 10/112
- **HEX:** #425465
- **RGB:** 66, 84, 101
- **Brightness:** Dark
- **Color families:** Blue
- **Temperature:** cool
- **Undertones:** blue

## Color codes
- **HSV:** Hue: 209° Saturation: 34.65% Value: 39.61%
- **HSL:** hsl(209, 21, 33)
- **CMYK:** Cyan: 34.65 Magenta: 16.83 Yellow: 0.0 Key: 60.39
- **YIQ:** Y: 80.556 I: -16.189 Q: 1.483
- **XYZ:** X: 7.765 Y: 8.438 Z: 13.528
- **CIE Lab:** L:34.879 a:-2.349 b:-12.075
- **CIE Luv:** L:34.879 u:-9.191 v:-15.498
- **Decimal:** 4346981
- **Hunter Lab:** 29.048, -3.119, -7.278

## Equivalent and related colors
- [Dulux Night Seas](https://plan-home.com/color/night-seas)
- [Dulux Peaceful Night](https://plan-home.com/color/peaceful-night)
- [Farrow and Ball Stiffkey Blue](https://plan-home.com/color/stiffkey-blue-281)
- [Tikkurila Denim](https://plan-home.com/color/denim-n429)
- [Tikkurila N431](https://plan-home.com/color/n431)
- [Little Greene Hicks' Blue](https://plan-home.com/color/hicks-blue-208)
- [Dulux Midwinter Tide](https://plan-home.com/color/midwinter-tide)
- [Tikkurila Royal](https://plan-home.com/color/royal-m436)
- [Dulux Midnight Teal](https://plan-home.com/color/midnight-teal-90bg-11101)
- [Dulux Indigo Shade](https://plan-home.com/color/indigo-shade)
- [Dulux Raven Plume](https://plan-home.com/color/raven-plume)
- [Farrow and Ball Hague Blue](https://plan-home.com/color/hague-blue-30)
- [Dulux Ink Well](https://plan-home.com/color/ink-well)
- [RAL Classic Grey Blue](https://plan-home.com/color/ral-5008-grey-blue)
- [Little Greene Juniper Ash](https://plan-home.com/color/juniper-ash-115)
- [Dulux Viridian Tide](https://plan-home.com/color/viridian-tide)
- [Tikkurila N434](https://plan-home.com/color/n434)
- [Dulux Winters Sky](https://plan-home.com/color/winters-sky)

## Lighter monochromatic colors
- [Dulux Peaceful Night](https://plan-home.com/color/peaceful-night)
- [Dulux Midnight Teal](https://plan-home.com/color/midnight-teal-90bg-11101)
- [Dulux Niagara Blues 1](https://plan-home.com/color/niagara-blues-1-10bb-15154)
- [Dulux Wild Water 2](https://plan-home.com/color/wild-water-2)
- [Dulux Ink Wash](https://plan-home.com/color/ink-wash)

## Complementary colors
- [Dulux Cocoa Blush 5](https://plan-home.com/color/cocoa-blush-5)
- [Dulux Chalk Blush 3](https://plan-home.com/color/chalk-blush-3)
- [Dulux Vintage Coins](https://plan-home.com/color/vintage-coins)
- [Dulux Nordic Bliss](https://plan-home.com/color/nordic-bliss)
- [Dulux Thimble Case](https://plan-home.com/color/thimble-case)

## Important note

Digital color values and matches are approximate. Screens, lighting, paint finish, surface texture, and application method can change how a color appears. Test a physical paint sample before making a final decision.