REDS

Fluo

#FF4131

RGB 255, 65, 49 · HSL 5°, 100%, 60% · CMYK 0, 75, 81, 0

Fluo is #FF4131 in HEX — rgb(255, 65, 49), hsl(5°, 100%, 60%), cmyk(0%, 75%, 81%, 0%).

Fluo pulls into the light end of the reds spectrum — HSL 5°, 100%, 60%. 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#FF4131

RGB255, 65, 49

HSL5°, 100%, 60%

HSV5°, 81%, 100%

CMYK0, 75, 81, 0

Decimal16728369

CSS RGBrgb(255, 65, 49)

CSS HSLhsl(5, 100%, 60%)

Paint Matches — this color across 16 brands

Kobra

Fluo 50

Exact match

Behr

Aurora Orange 210B-6

ΔE 5.5 · #F84B2F

RAL

Traffic Orange 2009

ΔE 6 · #F54021

Dulux

Circus S08H8

ΔE 9.4 · #FC5730

Benjamin Moore

Tawny 2012-10

ΔE 11.6 · #E14328

Dunn-Edwards

Burning Tomato DEA111

ΔE 11.9 · #EB5030

Vista Paint

Montana Dust K-1214

ΔE 13 · #E64E2B

Hallman-Lindsay

Starfish 1047

ΔE 15.4 · #F15E34

Dutch Boy

Orange D-6776

ΔE 18.5 · #DE4A00

Sherwin-Williams

Obstinate Orange SW6884

ΔE 21.5 · #D7552A

Kilz

Dynamite LH190

ΔE 25.3 · #DF5E47

Valspar

Autumn Blaze 2002-1A

ΔE 25.3 · #E16442

Farrow & Ball

Charlotte's Locks 268

ΔE 27.4 · #D65F3D

Colorhouse

Create .04 Create-04

ΔE 29.1 · #B8352E

PPG

Cinnamon Stone 1193-7

ΔE 29.4 · #C9543A

IKEA

IKEA193 193

ΔE 38.4 · #BA5B3A

Light Reflectance & Undertone

Light Reflectance Value (LRV)

25/100

Medium

0 · DarkLight · 100

Balanced reflectance — holds colour without washing out. Versatile for most rooms and the most forgiving range for true-to-chip results.

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

#FF4131

#33EEFF

Analogous

#FF3388

#FF4131

#FFAA33

Triadic

#FF4131

#33FF44

#4433FF

Split-Complementary

#FF4131

#33FFAA

#3388FF

Tetradic

#FF4131

#88FF33

#33EEFF

#AA33FF

Monochromatic

#990D00

#E61300

#FF4131

#FF8A80

#FFD0CC

Rectangle

#FF4131

#EEFF33

#33EEFF

#4433FF

Compound

#FF4131

#FFAA33

#33EEFF

#3388FF

Variations

Lighter

#FF695C

#F6968E

#F4C6C2

Darker

#F51400

#A80E00

#620800

Saturation

#B8807A

#FF4433

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

3.47:1

AA Large

vs Black

6.05:1

Deuteranopia

#FF4131

#B5A41D

Original → Simulated

Protanopia

#FF4131

#7F7F33

Original → Simulated

Tritanopia

#FF4131

#FC4A5D

Original → Simulated

Color Psychology

Bold · Energetic

Fluo 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

#FF5D40

Warm Bulb 2700K

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

#FF4131

Daylight 5500K

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

#EC6264

Cool Bulb 6500K

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

Pairs With

#EEE8E7

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.

#1ED5E6

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: #FF4131;

CSS — background

background-color: #FF4131;

CSS Variable

--color-fluo: #FF4131;

Tailwind v3 — config

colors: { 'fluo': '#FF4131' }

Tailwind — arbitrary

bg-[#FF4131] text-[#FF4131]

SCSS

$fluo: #FF4131;

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#E75136 · ΔE 14.6

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#E7513B · ΔE 15.7

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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 #FF4131?

#FF4131 is Fluo, a soft red with a warm undertone.

Is #FF4131 warm or cool?

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

What rooms work best with Fluo?

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

What colors pair well with Fluo?

Fluo 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 Fluo?

You can download Fluo 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 Fluo?

The hex code is #FF4131. In RGB it's 255, 65, 49, and in HSL it's 5°, 100%, 60%.

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