Recognised as Colour

#A6553F

#A6553F
Red
Dark
Nearest: Sienna

#A6553F is a red with RGB values 166, 85, 63 and HSL 13°, 45%, 45%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#A6553F#A6553F

HEX#A6553F

RGBrgb(166, 85, 63)

RGB (0–1)0.651, 0.3333, 0.2471

RGB percentages65.1%, 33.3%, 24.7%

HSLhsl(12.8, 45%, 44.9%)

HSV / HSBhsv(12.8, 62%, 65.1%)

CMYK0%, 48.8%, 62%, 34.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,900,799

CSS custom property--colour: #A6553F;

Brightness & contrast

Relative luminance0.14963WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.26:1

Contrast with white5.26:1WCAG normal text: AA

Contrast with black3.99:1WCAG normal text: Fail

Greyscale equivalent#656565

Inverted#59AAC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A613Dno red cones; affects about 1% of men; ΔE 34.3 from the original

Deuteranopia#7E733Eno green cones; the most common form, about 1% of men; ΔE 35 from the original

Tritanopia#B54650no blue cones; rare, and affects men and women equally; ΔE 17.6 from the original

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

Contrast with white, large text5.26:1WCAG large text: AAA

Contrast with black, large text3.99:1WCAG large text: AA

Named colours

Sienna · ΔE 8.2 Saddle brown · ΔE 16.2 Indian red · ΔE 16.6 Brown · ΔE 20.3 Dark salmon · ΔE 24.5 Light coral · ΔE 25

Nearest named CSS colourSienna (#A0522D)ΔE 8.24, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3F90A6

Analogous#A63F5D, #A6893F

Triadic#3FA655, #553FA6

Split complementary#3FA689, #3F5CA6

Tetradic#5CA63F, #3F90A6, #893FA6

Tints, shades & saturation

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

Lighter +40%#EACFC7

Lighter +30%#DCAFA2

Lighter +20%#CE8E7D

Lighter +10%#C06E58

Darker −10%#814231

Darker −20%#5C2F23

Darker −30%#371C15

Darker −40%#120907

More saturated +25%#C34522

Less saturated −25%#89655C

Channel breakdown

R166

G85

B63

Red166 (65.1%)

Green85 (33.3%)

Blue63 (24.7%)

Hue12.82°

Saturation (HSL)44.98%

Lightness44.9%

Dominant channelRed

Hex per channelR A6 · G 55 · B 3F

Keep nerding

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

#A6553F

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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