# Dulux Subzero Blue

Source: [https://plan-home.com/color/50bb-08257](https://plan-home.com/color/50bb-08257)

Dulux Subzero Blue 50BB 08/257 is a deep, cool-toned blue with a muted, slightly smoky cast rather than a bright navy finish. Its substantial depth gives walls a grounded look, while the blue remains clear enough to hold its character in daylight. In bright rooms, Subzero Blue can read as a softened medium-dark blue; under lower or warmer lighting, it takes on a more inky, shadowed appearance. Use it on a study wall, dining room cabinetry, or an exterior door where a strong color is wanted without high saturation. Crisp white trim, pale grey-blue textiles, natural oak, brushed nickel, and charcoal accents suit this shade particularly well.

## Color details
- **Brand or system:** Dulux
- **Color name:** Subzero Blue
- **Color code:** 50BB 08/257
- **HEX:** #39537a
- **RGB:** 57, 83, 122
- **LRV:** 8.24%
- **Brightness:** Dark
- **Color families:** Blue
- **Temperature:** cool
- **Undertones:** blue

## Color codes
- **HSV:** Hue: 216° Saturation: 53.28% Value: 47.84%
- **HSL:** hsl(216, 36, 35)
- **CMYK:** Cyan: 53.28 Magenta: 31.97 Yellow: 0.0 Key: 52.16
- **YIQ:** Y: 79.672 I: -28.026 Q: 6.637
- **XYZ:** X: 8.292 Y: 8.461 Z: 19.603
- **CIE Lab:** L:34.925 a:2.253 b:-25.131
- **CIE Luv:** L:34.925 u:-12.206 v:-34.438
- **Decimal:** 3756922
- **Hunter Lab:** 29.088, -0.018, -19.597

## Equivalent and related colors
- [Dulux Starlit Night 1](https://plan-home.com/color/starlit-night-1)
- [Dulux Morning Jewel 1](https://plan-home.com/color/morning-jewel-1)
- [Tikkurila N434](https://plan-home.com/color/n434)
- [Dulux Plush Velvet 3](https://plan-home.com/color/plush-velvet-3)
- [RAL Classic Violet Blue](https://plan-home.com/color/violet-blue-ral-5000)
- [Dulux Deepest Amethyst](https://plan-home.com/color/deepest-amethyst)
- [Dulux Sapphire Salute](https://plan-home.com/color/saphire-salute)
- [Little Greene Mazarine](https://plan-home.com/color/little-greene-mazarine-256)
- [Little Greene Smalt](https://plan-home.com/color/little-greene-smalt-255)
- [Tikkurila N431](https://plan-home.com/color/n431)
- [Dulux Mystical Night](https://plan-home.com/color/mystical-night)
- [Dulux Sapphire Springs 2](https://plan-home.com/color/sapphire-springs-2)
- [Dulux Pen Friend](https://plan-home.com/color/pen-friend)
- [Dulux Royal Regatta 1](https://plan-home.com/color/royal-regatta-1)
- [Dulux Plush Velvet 2](https://plan-home.com/color/plush-velvet-2)
- [Dulux Night Seas](https://plan-home.com/color/night-seas)
- [RAL Classic Brillant blue](https://plan-home.com/color/brillant-blue-ral-5007)
- [Dulux Cobalt Embrace](https://plan-home.com/color/cobalt-embrace)

## Lighter monochromatic colors
- [Dulux Martian Skies 3](https://plan-home.com/color/martian-skies-3)
- [Dulux Atlantic Surf 3](https://plan-home.com/color/atlantic-surf-3)
- [Dulux Iris Bouquet](https://plan-home.com/color/iris-bouquet)
- [Dulux Sapphire Springs 4](https://plan-home.com/color/sapphire-springs-4)
- [Dulux Fragrant Cloud 1](https://plan-home.com/color/fragrant-cloud-1)

## Darker monochromatic colors
- [Dulux Starlit Night 1](https://plan-home.com/color/starlit-night-1)
- [Dulux Sapphire Salute](https://plan-home.com/color/saphire-salute)
- [Dulux Plush Velvet 2](https://plan-home.com/color/plush-velvet-2)

## Complementary colors
- [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)
- [Dulux Common Dormouse](https://plan-home.com/color/common-dormouse)

## 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.