REDS

Heartbeat

#AA0000

RGB 170, 0, 0 · HSL 0°, 100%, 33% · CMYK 0, 100, 100, 33

Heartbeat is #AA0000 in HEX — rgb(170, 0, 0), hsl(0°, 100%, 33%), cmyk(0%, 100%, 100%, 33%).

Heartbeat pulls into the rich end of the reds spectrum — HSL 0°, 100%, 33%. The saturated saturation makes it bold and immediate, and the hue reads warm. In interior projects it shines on feature walls, dining rooms, hallways — anywhere you want energy. Reads best alongside cream walls, oak furniture, brass, soft black trim.

Color Codes

HEX#AA0000

RGB170, 0, 0

HSL0°, 100%, 33%

HSV0°, 100%, 67%

CMYK0, 100, 100, 33

Decimal11141120

CSS RGBrgb(170, 0, 0)

CSS HSLhsl(0, 100%, 33%)

Paint Matches — this color across 16 brands

Behr

Glowing Firelight S-G-200

ΔE 10 · #BD2E1E

RAL

Vermilion 2002

ΔE 10.7 · #CB2821

Dulux

Orange Pounce SB7D7

ΔE 13.4 · #CF3D24

Benjamin Moore

Vermilion 2002-10

ΔE 14 · #D0322C

Vista Paint

Painter's Red K-680

ΔE 14.1 · #CF252B

Hallman-Lindsay

Party Time 1109

ΔE 15.7 · #D0252F

Dutch Boy

Terracotta VS-9228

ΔE 16.7 · #B53B26

Colorhouse

Create .04 Create-04

ΔE 17.8 · #B8352E

Sherwin-Williams

Real Red SW6868

ΔE 18 · #BF2D32

Dunn-Edwards

Hot Jazz DEA107

ΔE 19 · #BC3033

Kilz

Atomic Red LH170

ΔE 21.6 · #B83236

Kobra

Orange 14

ΔE 22.2 · #DA5838

Valspar

Scarlet Sun 1011-1

ΔE 22.9 · #D24B42

PPG

Cinnamon Stone 1193-7

ΔE 23.9 · #C9543A

Farrow & Ball

Charlotte's Locks 268

ΔE 25.7 · #D65F3D

IKEA

IKEA130 130

ΔE 26.1 · #9B2C2C

Light Reflectance & Undertone

Light Reflectance Value (LRV)

9/100

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

TemperatureWarm MasstoneRed UndertonePink

Reads as a warm red with a pink undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.

Color Theory

Complementary

#AA0000

#00A8A8

Analogous

#A80054

#AA0000

#A85400

Triadic

#AA0000

#00A800

#0000A8

Split-Complementary

#AA0000

#00A854

#0054A8

Tetradic

#AA0000

#54A800

#00A8A8

#5400A8

Monochromatic

#1A0000

#5C0000

#AA0000

#F50000

#FF4242

Rectangle

#AA0000

#A8A800

#00A8A8

#0000A8

Compound

#AA0000

#A85400

#00A8A8

#0054A8

Variations

Lighter

#ED0000

#F04141

#ED9999

Darker

#870000

#5D0000

#360000

Saturation

#6D3B3B

#A80000

Interior Use

Best Rooms

dining rooms, hallways, feature walls

Best Uses

accent walls, doors, statement furniture

Pairs With

cream walls, oak furniture, brass, soft black trim

Accessibility (WCAG)

vs White

7.75:1

AAA

vs Black

2.71:1

Fail

Deuteranopia

#AA0000

#736700

Original → Simulated

Protanopia

#AA0000

#4A4A00

Original → Simulated

Tritanopia

#AA0000

#A8162B

Original → Simulated

Color Psychology

Bold · Energetic

Heartbeat carries the unmistakable charge of red — it raises pulse and appetite, draws the eye first in any room, and refuses to recede. Use it where you want presence: dining rooms that should feel social, hallways that need a focal point, front doors that announce arrival.

SymbolismPassion, urgency, vitality

PersonalityConfident, expressive, daring

energyappetitefocalsocialwarmthstatement

How it looks under different light

#BF2D1B

Warm Bulb 2700K

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

#AA0000

Daylight 5500K

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

#AC323F

Cool Bulb 6500K

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

Pairs With

#EEE7E7

Trim

Matched off-white

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

#F8F7F7

Ceiling

Whisper tint

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

#0E8181

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 · Doors · Mouldings

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: #AA0000;

CSS — background

background-color: #AA0000;

CSS Variable

--color-heartbeat: #AA0000;

Tailwind v3 — config

colors: { 'heartbeat': '#AA0000' }

Tailwind — arbitrary

bg-[#AA0000] text-[#AA0000]

SCSS

$heartbeat: #AA0000;

Similar Colors

Vermilion

#CF312B · ΔE 13.6

Ruby Red

#CA2C2C · ΔE 14.0

Heritage Red

#990A14 · ΔE 14.2

Redstone

#D33B2B · ΔE 14.3

Red

#C92E2E · ΔE 14.8

Tomato Red

#D7402B · ΔE 15.2

Orange

#E0412B · ΔE 16.6

Tawny Day Lily

#E04227 · ΔE 16.6

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 #AA0000?

#AA0000 is Heartbeat, a deep red with a warm undertone.

Is #AA0000 warm or cool?

Heartbeat reads warm, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Heartbeat?

Heartbeat works well in dining rooms, hallways, feature walls. Designers typically use it for accent walls, doors, statement furniture.

What colors pair well with Heartbeat?

Heartbeat pairs naturally with cream walls, oak furniture, brass, soft black trim. Its complementary color is also a strong contrast option for accents.

Where can I download Heartbeat?

You can download Heartbeat 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 Heartbeat?

The hex code is #AA0000. In RGB it's 170, 0, 0, and in HSL it's 0°, 100%, 33%.

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