Recognised as Colour

#871C37

#871C37
Red
Dark
Nearest: Brown

#871C37 is a red with RGB values 135, 28, 55 and HSL 345°, 66%, 32%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#871C37#871C37

HEX#871C37

RGBrgb(135, 28, 55)

RGB (0–1)0.5294, 0.1098, 0.2157

RGB percentages52.9%, 11%, 21.6%

HSLhsl(344.9, 65.6%, 32%)

HSV / HSBhsv(344.9, 79.3%, 52.9%)

CMYK0%, 79.3%, 59.3%, 47.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,854,583

CSS custom property--colour: #871C37;

Brightness & contrast

Relative luminance0.06257WCAG 2.x, 0 is black and 1 is white

Perceived brightness79.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.33:1

Contrast with white9.33:1WCAG normal text: AAA

Contrast with black2.25:1WCAG normal text: Fail

Greyscale equivalent#353535

Inverted#78E3C8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#393937no red cones; affects about 1% of men; ΔE 47.9 from the original

Deuteranopia#554F34no green cones; the most common form, about 1% of men; ΔE 48.5 from the original

Tritanopia#940028no blue cones; rare, and affects men and women equally; ΔE 14 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text9.33:1WCAG large text: AAA

Contrast with black, large text2.25:1WCAG large text: Fail

Named colours

Brown · ΔE 20.7 Indian red · ΔE 25.6 Maroon · ΔE 26.9 Firebrick · ΔE 29.3 Dark red · ΔE 30.2 Sienna · ΔE 32.2

Nearest named CSS colourBrown (#A52A2A)ΔE 20.69, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#1C876C

Analogous#871C6C, #87361C

Triadic#37871C, #1C3787

Split complementary#1C8737, #1C6C87

Tetradic#6D871C, #1C876C, #371C87

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#E689A0

Lighter +30%#DE5E7E

Lighter +20%#D5345D

Lighter +10%#B12548

Darker −10%#5D1326

Darker −20%#330A15

Darker −30%#080203

Darker −40%#000000

More saturated +25%#9B082D

Less saturated −25%#733041

Channel breakdown

R135

G28

B55

Red135 (52.9%)

Green28 (11%)

Blue55 (21.6%)

Hue344.86°

Saturation (HSL)65.64%

Lightness31.96%

Dominant channelRed

Hex per channelR 87 · G 1C · B 37

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#871C37

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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