Recognised as Colour

#971B31

#971B31
Red
Dark
Nearest: Brown

#971B31 is a red with RGB values 151, 27, 49 and HSL 349°, 70%, 35%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#971B31#971B31

HEX#971B31

RGBrgb(151, 27, 49)

RGB (0–1)0.5922, 0.1059, 0.1922

RGB percentages59.2%, 10.6%, 19.2%

HSLhsl(349.4, 69.7%, 34.9%)

HSV / HSBhsv(349.4, 82.1%, 59.2%)

CMYK0%, 82.1%, 67.5%, 40.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer9,902,897

CSS custom property--colour: #971B31;

Brightness & contrast

Relative luminance0.07585WCAG 2.x, 0 is black and 1 is white

Perceived brightness86.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.34:1

Contrast with white8.34:1WCAG normal text: AAA

Contrast with black2.52:1WCAG normal text: Fail

Greyscale equivalent#373737

Inverted#68E4CE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#413D31no red cones; affects about 1% of men; ΔE 53.1 from the original

Deuteranopia#60572Dno green cones; the most common form, about 1% of men; ΔE 53.7 from the original

Tritanopia#A60025no blue cones; rare, and affects men and women equally; ΔE 13.1 from the original

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

Contrast with white, large text8.34:1WCAG large text: AAA

Contrast with black, large text2.52:1WCAG large text: Fail

Named colours

Brown · ΔE 11.3 Firebrick · ΔE 19.2 Maroon · ΔE 19.6 Indian red · ΔE 21.2 Dark red · ΔE 21.7 Crimson · ΔE 28.1

Nearest named CSS colourBrown (#A52A2A)ΔE 11.29, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1B9781

Analogous#971B6F, #97431B

Triadic#31971B, #1B3197

Split complementary#1B9743, #1B6F97

Tetradic#6F971B, #1B9781, #431B97

Tints, shades & saturation

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

Lighter +40%#EC92A2

Lighter +30%#E4677D

Lighter +20%#DC3C58

Lighter +10%#C2233F

Darker −10%#6C1323

Darker −20%#400C15

Darker −30%#150407

Darker −40%#000000

More saturated +25%#AD0523

Less saturated −25%#81313F

Channel breakdown

R151

G27

B49

Red151 (59.2%)

Green27 (10.6%)

Blue49 (19.2%)

Hue349.35°

Saturation (HSL)69.66%

Lightness34.9%

Dominant channelRed

Hex per channelR 97 · G 1B · B 31

Keep nerding

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

#971B31

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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