Recognised as Colour

#81503A

#81503A
Orange
Dark
Nearest: Sienna

#81503A is a orange with RGB values 129, 80, 58 and HSL 19°, 38%, 37%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#81503A#81503A

HEX#81503A

RGBrgb(129, 80, 58)

RGB (0–1)0.5059, 0.3137, 0.2275

RGB percentages50.6%, 31.4%, 22.7%

HSLhsl(18.6, 38%, 36.7%)

HSV / HSBhsv(18.6, 55%, 50.6%)

CMYK0%, 38%, 55%, 49.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,474,682

CSS custom property--colour: #81503A;

Brightness & contrast

Relative luminance0.1071WCAG 2.x, 0 is black and 1 is white

Perceived brightness95.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.68:1

Contrast with white6.68:1WCAG normal text: AA

Contrast with black3.14:1WCAG normal text: Fail

Greyscale equivalent#595959

Inverted#7EAFC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5D5638no red cones; affects about 1% of men; ΔE 20.6 from the original

Deuteranopia#69603Ano green cones; the most common form, about 1% of men; ΔE 20.6 from the original

Tritanopia#8C474Ano blue cones; rare, and affects men and women equally; ΔE 15.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.68:1WCAG large text: AAA

Contrast with black, large text3.14:1WCAG large text: AA

Named colours

Sienna · ΔE 18.7 Saddle brown · ΔE 21.3 Dim grey · ΔE 28.6 Rosy brown · ΔE 28.7 Indian red · ΔE 30.3 Gray · ΔE 31.6

Nearest named CSS colourSienna (#A0522D)ΔE 18.68, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3A6B81

Analogous#813A47, #81743A

Triadic#3A8150, #503A81

Split complementary#3A8174, #3A4781

Tetradic#47813A, #3A6B81, #743A81

Tints, shades & saturation

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

Lighter +40%#DABBAD

Lighter +30%#CA9E8A

Lighter +20%#BA8167

Lighter +10%#A4664A

Darker −10%#5E3A2A

Darker −20%#3B241A

Darker −30%#170F0B

Darker −40%#000000

More saturated +25%#984723

Less saturated −25%#6A5951

Channel breakdown

R129

G80

B58

Red129 (50.6%)

Green80 (31.4%)

Blue58 (22.7%)

Hue18.59°

Saturation (HSL)37.97%

Lightness36.67%

Dominant channelRed

Hex per channelR 81 · G 50 · B 3A

Keep nerding

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

#81503A

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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