Valspar UK Biro Blue R145A

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What are Valspar UK Biro Blue undertones?
Is Biro Blue R145A cool or warm?
How light temperature affects on Biro Blue
Monochromatic color scheme
Complementary color scheme
Color comparison and matching
Color codes
Color equivalents

Official page:	Biro Blue R145A
Code:	R145A
Name:	Biro Blue
Brand:	Valspar UK

What color is Valspar UK Biro Blue?

Valspar UK Biro Blue R145A is a clear mid-depth blue with a cool, slightly teal-leaning cast. Its solid saturation gives it enough presence for a feature wall, while the moderate depth keeps it from feeling overly dark in a well-lit room. In daylight, this shade reads as crisp and clean; under warmer evening lighting, its blue character can appear deeper and more muted. Use Biro Blue on cabinetry, a study wall, or a front door alongside soft white trim, pale grey, and natural oak. Brushed nickel, matte black hardware, and light stone surfaces give the color a practical, contemporary setting.

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What are Valspar UK Biro Blue undertones?

Biro Blue is a midtone, soft slate blue. The HEX sample leans blue; this describes its measurable digital hue direction, not a hidden paint pigment. Warm bulbs may gray the color down, while cool daylight usually makes its blue or teal direction clearer.

HEX value:

#296CA4

RGB code:

41, 108, 164

Is Valspar UK Biro Blue cool or warm?

warm

cool

At 207° on the HSL hue wheel, this dark blue falls clearly in the cool range.

R145A Biro Blue HSL code: 207, 60%, 40%

Hue - degree on a color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is expressed as a percentage. At 0%, it appears as a shade of grey, and at 100%, it is in full color.
Lightness is also a percentage value. 0% is black, and 100% is white.

How light temperature affects Biro Blue

Natural Lighting. During the day, natural light shifts from about 2000 K at sunrise/sunset to 5500–6500 K at noon.

Sunrise

Morning

Noon

Afternoon

Sunset

In addition, natural-light temperature depends on its direction:

Direction of sunlight	Visible temp.	Hue	Duration
North	Cool	Bluish	All day
East	Warm	Yellow	Before noon
West	Warm	Orange-red	After noon
South	Warm	Orange-yellow	All day

Artificial Lighting. When choosing bulbs, pay attention to their color temperature in Kelvins.
Use the slider to see how this dark blue shade looks under different lighting:

4000K

2000K

3000K

4000K

5000K

6000K

7000K

Coordinating colors.
Colors that go with Valspar UK Biro Blue:

Monochromatic color scheme

This scheme consists of various shades, tints, and tones of a single color. While it offers a perfect combination of hues, without accent décor it may become monotonous.

Lighter shades

R145A
Biro Blue

R146B
Picasso Blue

Darker shades

R145A
Biro Blue

X76R162A
Back of Beyond

Complementary color scheme

This color scheme is a combination of two shades that are opposite each other on the color wheel. The high contrast between these colors creates a vibrant and dynamic visual effect. For the color Biro Blue with a green hue, complementary colors are those with a red hue close to 27, such as Valspar UK Cabin Glow and Char Latte.

R145A
Biro Blue

Compare
Valspar UK
Biro Blue R145A
to any other colors