BLUES

Incremental Blue

#123456

RGB 18, 52, 86 · HSL 210°, 65%, 20% · CMYK 79, 40, 0, 66

Incremental Blue is #123456 in HEX — rgb(18, 52, 86), hsl(210°, 65%, 20%), cmyk(79%, 40%, 0%, 66%).

Incremental Blue pulls into the deep end of the blues spectrum — HSL 210°, 65%, 20%. 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

HEX#123456

RGB18, 52, 86

HSL210°, 65%, 20%

HSV210°, 79%, 34%

CMYK79, 40, 0, 66

Decimal1193046

CSS RGBrgb(18, 52, 86)

CSS HSLhsl(210, 65%, 20%)

Paint Matches — this color across 16 brands

Dutch Boy

Royal Blue D-6740

ΔE 3.2 · #1D375C

Benjamin Moore

Symphony 2060-10

ΔE 3.9 · #213C5E

Behr

Very Navy M500-7

ΔE 4 · #233B5E

Dulux

Boatswain S41F9

ΔE 4.2 · #243456

RAL

Gentian Blue 5010

ΔE 5.3 · #0E294B

Vista Paint

Blazer Blue K-152

ΔE 7.6 · #243A52

Sherwin-Williams

Dress Blues SW9176

ΔE 8 · #2B4360

Kobra

Blue 31

ΔE 9.6 · #334059

Dunn-Edwards

Magic Night DEA191

ΔE 10.1 · #3A3B5B

PPG

Blue Tang 10-32 · 1160-7

ΔE 10.1 · #2A4B6E

Hallman-Lindsay

Star-studded 620

ΔE 10.2 · #32425A

Kilz

Indigo RH220

ΔE 10.9 · #314973

IKEA

IKEA122 122

ΔE 13.3 · #3A5170

Valspar

Spirit Blue 4011-9

ΔE 15.4 · #49456F

Farrow & Ball

Hague Blue 30

ΔE 20.7 · #3D4E57

Colorhouse

Wool .06 Wool-06

ΔE 22.7 · #485761

Light Reflectance & Undertone

Light Reflectance Value (LRV)

3/100

Very Dark

0 · DarkLight · 100

Absorbs almost all light — dramatic and cocooning. Needs strong artificial lighting and works best as an accent or in well-lit rooms.

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

#123456

#543312

Analogous

#125454

#123456

#121254

Triadic

#123456

#541233

#335412

Split-Complementary

#123456

#541212

#545412

Tetradic

#123456

#541254

#543312

#125412

Monochromatic

#040D15

#123456

#1F5993

#2D7FD2

Rectangle

#123456

#331254

#543312

#335412

Compound

#123456

#121254

#543312

#545412

Variations

Lighter

#205C97

#4185C8

#97B8D8

Darker

#0D2945

#081C30

#04101D

Saturation

#29333D

#123354

#09335D

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

12.72:1

AAA

vs Black

1.65:1

Fail

Deuteranopia

#123456

#1F3056

Original → Simulated

Protanopia

#123456

#303052

Original → Simulated

Tritanopia

#123456

#073B35

Original → Simulated

Color Psychology

Focused · Cooling

Incremental 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

#4D545C

Warm Bulb 2700K

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

#123456

Daylight 5500K

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

#3A5980

Cool Bulb 6500K

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

Pairs With

#E8EBED

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.

#472E15

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 / Aura Interior (for richer color depth in deep tones)

Recommended Finishes

Matte (walls) · Pearl (trim) · Satin (doors)

Deep colors look best in matte — gloss exaggerates surface flaws. Reserve subtle sheen for trim, doors, and high-touch areas.

Best Surfaces

Accent walls · Doors · Cabinetry · Built-ins

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

Tinted primer in a similar value is highly recommended — saves a coat and prevents the wall colour from washing the surface.

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: #123456;

CSS — background

background-color: #123456;

CSS Variable

--color-incremental-blue: #123456;

Tailwind v3 — config

colors: { 'incremental-blue': '#123456' }

Tailwind — arbitrary

bg-[#123456] text-[#123456]

SCSS

$incremental-blue: #123456;

Similar Colors

Symphony Blue

#203B5D · ΔE 3.5

Bold Blue

#2B3558 · ΔE 6.2

Marine Blue

#1D3E59 · ΔE 6.9

Downpour Blue

#254669 · ΔE 7.9

Admiral Blue

#2B3762 · ΔE 9.0

Midnight Navy

#333356 · ΔE 9.5

Champion Cobalt

#264864 · ΔE 10.0

Blue Grotto

#353963 · ΔE 10.7

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 #123456?

#123456 is Incremental Blue, a deep blue with a cool undertone.

Is #123456 warm or cool?

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

What rooms work best with Incremental Blue?

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

What colors pair well with Incremental Blue?

Incremental 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 Incremental Blue?

You can download Incremental 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 Incremental Blue?

The hex code is #123456. In RGB it's 18, 52, 86, and in HSL it's 210°, 65%, 20%.

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