BLUES
21st Century Blue
#7FB9DD
21st Century Blue is #7FB9DD in HEX — rgb(127, 185, 221), hsl(203°, 58%, 68%), cmyk(43%, 16%, 0%, 13%).
21st Century Blue pulls into the light end of the blues spectrum — HSL 203°, 58%, 68%. The balanced saturation makes it confident without overpowering, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, home offices — for calm, focused environments. Reads best alongside warm white trim, oak or walnut, brass or matte black hardware.
Color Codes
Paint Matches — this color across 16 brands
Benjamin Moore
Blue 2063-50
Vista Paint
Cascade Blue K-147
Hallman-Lindsay
Watery Sea 638
Sherwin-Williams
Regale Blue SW6801
PPG
Horizon Haze 1237-4
Dunn-Edwards
Astral DE5856
Dulux
Pacific Harbour S35E2
Valspar
High Seas 4006-10A
Behr
Colorado Springs 570D-4
Kilz
Azure Pool RD240-01
IKEA
IKEA085 85
Dutch Boy
Sky Blue D-6742
Farrow & Ball
St Giles Blue 280
Kobra
Blue 28
Colorhouse
Dream .03 Dream-03
RAL
Pastel Turquoise 6034
Light Reflectance & Undertone
Light Reflectance Value (LRV)
44/100
Medium
Balanced reflectance — holds colour without washing out. Versatile for most rooms and the most forgiving range for true-to-chip results.
Undertone
Reads as a cool blue with a violet undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.
Color Theory
Complementary
Analogous
Triadic
Split-Complementary
Tetradic
Monochromatic
Rectangle
Compound
Variations
Lighter
Darker
Saturation
Interior Use
Best Rooms
bedrooms, bathrooms, home offices
Best Uses
main walls, ceilings, trim, cabinetry
Pairs With
warm white trim, oak or walnut, brass or matte black hardware
Accessibility (WCAG)
Deuteranopia
Protanopia
Tritanopia
Color Psychology
Focused · Cooling
21st Century Blue lowers the temperature of a room — useful in south-facing rooms that overheat visually, and in home offices where you want a clear head. Pair with warm wood and brass to keep it from reading clinical.
How it looks under different light
Pairs With
Paint Info
Brand · Product Line
Benjamin Moore / Regal Select Interior
Recommended Finishes
Eggshell (walls) · Pearl (trim) · Matte (ceiling)
Eggshell hides imperfections on main walls while keeping the color rich; pearl on trim adds subtle sheen and easier cleaning; flat matte on ceilings prevents glare.
Best Surfaces
Primary walls · Cabinetry · Trim · Soft furniture
Coverage & Dry Time
Typical coverage 350-400 sq ft per gallon over a primed surface.
Touch-dry in ~1 hour. Recoat after 4 hours. Full cure 7-14 days.
Primer
Standard primer is adequate.
Application Tip
Use a 9" microfiber roller on walls and a 2.5" angled sash brush for trim cuts. Two coats minimum for even depth.
Paint Calculator
You'll need
4.0 litres
1.06 US gallons · room for one touch-up coat. Buy slightly more to ensure single-batch match.
Code Snippets
color: #7FB9DD;background-color: #7FB9DD;--color-21st-century-blue: #7FB9DD;colors: { '21st-century-blue': '#7FB9DD' }bg-[#7FB9DD] text-[#7FB9DD]$21st-century-blue: #7FB9DD;Similar Colors
Our color tools run on our own catalogue of 26,000+ real paint colors across 16 brands — Benjamin Moore, Sherwin-Williams, Behr, Dulux, RAL and more — with the color math (HSL and CIELAB matching) computed in-house, not scraped from summaries. Every color you pick maps to a real, buyable paint with its code, so what you see here you can actually take to the store. We review and update these tools and their data regularly.
Created by Denis Kataev, founder of DSGN.HOUSE — a software engineer and digital entrepreneur building professional color-design tools for everyone.
Frequently Asked Questions
What color is #7FB9DD?
#7FB9DD is 21st Century Blue, a soft blue with a cool undertone.
Is #7FB9DD warm or cool?
21st Century Blue reads cool, which influences how it interacts with surrounding tones and natural light.
What rooms work best with 21st Century Blue?
21st Century Blue works well in bedrooms, bathrooms, home offices. Designers typically use it for main walls, ceilings, trim, cabinetry.
What colors pair well with 21st Century Blue?
21st Century Blue pairs naturally with warm white trim, oak or walnut, brass or matte black hardware. Its complementary color is also a strong contrast option for accents.
Where can I download 21st Century Blue?
You can download 21st Century Blue on DSGN.HOUSE in 15 designer formats including CSS gradient, Figma, Procreate swatches, Tailwind config, Adobe ASE, SVG, and 4K wallpapers — all free.
What's the hex code for 21st Century Blue?
The hex code is #7FB9DD. In RGB it's 127, 185, 221, and in HSL it's 203°, 58%, 68%.
