BLUES

C64 Blue

#003AFF

RGB 0, 58, 255 · HSL 226°, 100%, 50% · CMYK 100, 77, 0, 0

C64 Blue is #003AFF in HEX — rgb(0, 58, 255), hsl(226°, 100%, 50%), cmyk(100%, 77%, 0%, 0%).

C64 Blue pulls into the mid-tone end of the blues spectrum — HSL 226°, 100%, 50%. The saturated saturation makes it bold and immediate, 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

HEX#003AFF

RGB0, 58, 255

HSL226°, 100%, 50%

HSV226°, 100%, 100%

CMYK100, 77, 0, 0

Decimal15103

CSS RGBrgb(0, 58, 255)

CSS HSLhsl(226, 100%, 50%)

Paint Matches — this color across 16 brands

Behr

Canyon Iris P540-7

ΔE 23.3 · #2A3DD6

Dutch Boy

Blue Royale VS-9550

ΔE 65.7 · #243F90

Colorhouse

Petal .05 Petal-05

ΔE 72.2 · #1F4992

RAL

Signal Blue 5005

ΔE 74.6 · #1E2D6E

PPG

Crushed Velvet 1245-7

ΔE 74.9 · #445397

Vista Paint

Petulant Pat K-64

ΔE 74.9 · #50498A

Dunn-Edwards

Bellflower DE5908

ΔE 76.3 · #5D66AA

Hallman-Lindsay

Blue Highlight 613

ΔE 76.5 · #324A8B

Benjamin Moore

Evening 2066-20

ΔE 76.6 · #014F94

Dulux

Purple Geisha SB8G7

ΔE 77.4 · #54518F

Kobra

Violet 25

ΔE 78.2 · #776BAB

Valspar

Twinkle Night 4004-8C

ΔE 81 · #5A65A1

Kilz

Superstition RH250

ΔE 83.2 · #604C7F

IKEA

IKEA128 128

ΔE 83.3 · #4A72B0

Sherwin-Williams

African Violet SW6982

ΔE 84.2 · #665385

Farrow & Ball

Pitch Blue 220

ΔE 97.5 · #636E8F

Light Reflectance & Undertone

Light Reflectance Value (LRV)

10/100

Dark

0 · DarkLight · 100

Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.

Undertone

TemperatureCool MasstoneBlue UndertoneViolet

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

#003AFF

#FFC300

Analogous

#00BBFF

#003AFF

#4400FF

Triadic

#003AFF

#FF003B

#3BFF00

Split-Complementary

#003AFF

#FF4400

#BBFF00

Tetradic

#003AFF

#FF00BB

#FFC300

#00FF44

Monochromatic

#001866

#002AB3

#003AFF

#4D76FF

#99B1FF

Rectangle

#003AFF

#C300FF

#FFC300

#3BFF00

Compound

#003AFF

#4400FF

#FFC300

#BBFF00

Variations

Lighter

#3363FF

#7190F4

#B3C2F2

Darker

#0030CC

#00218C

#001352

Saturation

#596BA6

#003BFF

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)

vs White

6.89:1

vs Black

3.05:1

AA Large

Deuteranopia

#003AFF

#005FFF

Original → Simulated

Protanopia

#003AFF

#3535F1

Original → Simulated

Tritanopia

#003AFF

#007A58

Original → Simulated

Color Psychology

Focused · Cooling

C64 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.

SymbolismTrust, depth, stability

PersonalityClear-headed, dependable, contemplative

focustrustcalmofficebedroomdepth

How it looks under different light

#3F58DA

Warm Bulb 2700K

Incandescent / soft white LED — pulls colour toward yellow/amber.

#003AFF

Daylight 5500K

Midday natural light or daylight-spec LED — closest to the paint chip.

#2D5DFF

Cool Bulb 6500K

Cool white LED / overcast daylight — pulls colour toward blue.

Pairs With

#E7E9EE

Trim

Matched off-white

Same hue at 92% lightness — trim reads coordinated, not stark.

#F7F7F8

Ceiling

Whisper tint

Near-white with a hint of the hero's undertone — ceiling feels intentional.

#C39B16

Accent

Complementary punch

Hue +180°, slightly muted for paint vs. screen — use on a door, frame, or single piece.

#574738

Floor

Walnut neutral

Warm mid-brown grounds the scheme regardless of hero hue.

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

Wall area (m²)

Coats

Coverage (m² / L)

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

CSS — color

color: #003AFF;

CSS — background

background-color: #003AFF;

CSS Variable

--color-c64-blue: #003AFF;

Tailwind v3 — config

colors: { 'c64-blue': '#003AFF' }

Tailwind — arbitrary

bg-[#003AFF] text-[#003AFF]

SCSS

$c64-blue: #003AFF;

Similar Colors

Warriors Blue

#00498D · ΔE 76.4

Evening Blue

#004E93 · ΔE 76.5

Big Country Blue

#0066B1 · ΔE 76.6

Twilight Blue

#365496 · ΔE 77.1

Scandinavian Blue

#4E4E8C · ΔE 77.3

Mystical Grape

#664B86 · ΔE 78.4

Delphinium

#304C89 · ΔE 79.5

Blue

#233872 · ΔE 79.8

Built by DSGN.HOUSE Updated 2026

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 #003AFF?

#003AFF is C64 Blue, a mid-tone blue with a cool undertone.

Is #003AFF warm or cool?

C64 Blue reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with C64 Blue?

C64 Blue works well in bedrooms, bathrooms, home offices. Designers typically use it for main walls, ceilings, trim, cabinetry.

What colors pair well with C64 Blue?

C64 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 C64 Blue?

You can download C64 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 C64 Blue?

The hex code is #003AFF. In RGB it's 0, 58, 255, and in HSL it's 226°, 100%, 50%.

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