redwarmCC0 survey name

Purple Brown #673A3F

Purple Brown is a dark, moderately saturated warm color (#673A3F; HSL 353° 28% 32%). Name from the public-domain xkcd color survey (CC0), where it was contributed as “purple brown”.

Use cases: Alerts · Attention accents

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Families: Reds · Wine Colors

Color values

FormatValue
HEX#673A3F
RGBrgb(103, 58, 63)
HSLhsl(353, 28%, 32%)
HSVhsv(353, 44%, 40%)
OKLCHoklch(40.52% 0.064 13.2)
OKLaboklab(40.52% 0.0622 0.0146)
CMYKcmyk(0%, 43.7%, 38.8%, 59.6%)
XYZxyz(8.0041, 6.2692, 5.4902)
CIE-LABlab(30.1, 20.5, 5.6)
CIE-LCHlch(30.1, 21.3, 15.2°)
Luminance0.063 (WCAG relative)
/* Purple Brown */ --purple-brown: #673a3f; color: #673a3f; background-color: #673a3f;

Source: xkcd color survey name (public domain, CC0). CSS keyword: purplebrown.

Collections: Muted Colors · Dusty Pink Colors

Shade scale

Perceptual 50–950 scale, interpolated in CIE-LAB. Step 500 is the base color. Edit in the shade generator →

50
100
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950

OKLCH ramp (perceptually uniform, modern CSS)

50
100
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400
500
600
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800
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950

Shades (toward black)

#5d3539 #522f33 #482a2d #3e2528 #352022 #2b1b1d #221717 #1a1112 #10090a #000000

Tints (toward white)

#764c50 #855e61 #947174 #a38486 #b29799 #c2abad #d1c0c1 #e0d5d5 #f0eaea #ffffff

Tones (toward gray)

#643c40 #613d41 #5e3e41 #5b4042 #584143 #554244 #514444 #4e4545 #4b4646 #474747

Color harmonies

Complementary

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#673A3F
#3A6762
#673a3f #3a6762

Analogous

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#673A56
#673A3F
#674C3A
#673a56 #673a3f #674c3a

Triadic

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#673A3F
#3F673A
#3A3F67
#673a3f #3f673a #3a3f67

Tetradic

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#673A3F
#56673A
#3A6762
#4C3A67
#673a3f #56673a #3a6762 #4c3a67

Square

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#673A3F
#56673A
#3A6762
#4C3A67
#673a3f #56673a #3a6762 #4c3a67

Split Complementary

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#673A3F
#3A674C
#3A5667
#673a3f #3a674c #3a5667

Monochromatic

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#190E0F
#402427
#673A3F
#8E5057
#AD6E75
#190e0f #402427 #673a3f #8e5057 #ad6e75

Accessibility & contrast

9.32
#673A3F on #FFFFFF
AA text ✓AA large ✓AAA text ✓UI 3:1 ✓
2.25
#673A3F on #000000
AA text ✗AA large ✗AAA text ✗UI 3:1 ✗

Best text on purple brown

9.32
#FFFFFF text

WCAG 2.1: AA needs ≥4.5:1 for normal text, ≥3:1 for large text and UI components; AAA needs ≥7:1 / ≥4.5:1. Open the contrast checker →

Color blindness preview

Simulation using the Machado et al. (2009) physiological model, severity 1.0. This is an approximation of perception — not a medical assessment.

Normal vision
Protanopia (red-blind)
#42423F
Deuteranopia (green-blind)
#4D4A3E
Tritanopia (blue-blind)
#6F353C

Closest named colors

Nearest matches by CIEDE2000 perceptual distance (ΔE₀₀) across the full color database.

ColorNameΔE₀₀
Purplish Brown #6B42472.58
Wine #722F375.13
Dark Mauve #874C6210.28
Dirty Purple #734A6510.66
Bordeaux #7B002C11.68
Wine Red #7B032312.04

Colors that go with purple brown

Top matches by hue harmony, contrast and saturation compatibility.

Dusty Pink #D8A7B1
4.5:1
Same hue family as purple brown (Δh 6°) — guaranteed harmony
Mushroom #BA9E88
3.7:1
Analogous hue (Δh ≈33°) — neighbors on the color wheel
Forest Green #2D5A27
1.2:1
Triadic harmony (Δh ≈120°) — balanced three-way contrast
Cool Gray #9AA7B0
3.8:1
Split-complementary angle (Δh ≈149°) — strong but softer than direct complement
Ice #D6FFFA
8.7:1
Complementary hue (Δh ≈179°) — maximum hue contrast

Values computed from the sRGB color model. CMYK is the naive sRGB conversion without an ICC profile. RGB percentages may differ between color-managed applications.