Recognised as Colour

#521D37

#521D37
Red
Dark
Nearest: Black

#521D37 is a red with RGB values 82, 29, 55 and HSL 331°, 48%, 22%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#521D37#521D37

HEX#521D37

RGBrgb(82, 29, 55)

RGB (0–1)0.3216, 0.1137, 0.2157

RGB percentages32.2%, 11.4%, 21.6%

HSLhsl(330.6, 47.7%, 21.8%)

HSV / HSBhsv(330.6, 64.6%, 32.2%)

CMYK0%, 64.6%, 32.9%, 67.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,381,431

CSS custom property--colour: #521D37;

Brightness & contrast

Relative luminance0.02948WCAG 2.x, 0 is black and 1 is white

Perceived brightness53.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.21:1

Contrast with white13.21:1WCAG normal text: AAA

Contrast with black1.59:1WCAG normal text: Fail

Greyscale equivalent#2A2A2A

Inverted#ADE2C8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#242A38no red cones; affects about 1% of men; ΔE 27.1 from the original

Deuteranopia#333336no green cones; the most common form, about 1% of men; ΔE 27.3 from the original

Tritanopia#581A27no blue cones; rare, and affects men and women equally; ΔE 11.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.21:1WCAG large text: AAA

Contrast with black, large text1.59:1WCAG large text: Fail

Named colours

Black · ΔE 34.5 Dim grey · ΔE 37.4 Dark slateblue · ΔE 39.3 Dark slate grey · ΔE 41.2 Gray · ΔE 44 Pale violetred · ΔE 44.7

Nearest named CSS colourBlack (#000000)ΔE 34.47, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D5238

Analogous#521D52, #521E1D

Triadic#37521D, #1D3752

Split complementary#1D521E, #1D5252

Tetradic#52521D, #1D5238, #1D1D52

Tints, shades & saturation

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

Lighter +40%#CC6F9D

Lighter +30%#BF4983

Lighter +20%#9D386A

Lighter +10%#782A50

Darker −10%#2C101E

Darker −20%#070204

Darker −30%#000000

Darker −40%#000000

More saturated +25%#600F37

Less saturated −25%#442B37

Channel breakdown

R82

G29

B55

Red82 (32.2%)

Green29 (11.4%)

Blue55 (21.6%)

Hue330.57°

Saturation (HSL)47.75%

Lightness21.76%

Dominant channelRed

Hex per channelR 52 · G 1D · B 37

Keep nerding

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

#521D37

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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