Recognised as Colour

#491B16

#491B16
Red
Dark
Nearest: Black

#491B16 is a red with RGB values 73, 27, 22 and HSL 6°, 54%, 19%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#491B16#491B16

HEX#491B16

RGBrgb(73, 27, 22)

RGB (0–1)0.2863, 0.1059, 0.0863

RGB percentages28.6%, 10.6%, 8.6%

HSLhsl(5.9, 53.7%, 18.6%)

HSV / HSBhsv(5.9, 69.9%, 28.6%)

CMYK0%, 63%, 69.9%, 71.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,791,062

CSS custom property--colour: #491B16;

Brightness & contrast

Relative luminance0.02258WCAG 2.x, 0 is black and 1 is white

Perceived brightness45.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.47:1

Contrast with white14.47:1WCAG normal text: AAA

Contrast with black1.45:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#B6E4E9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#272315no red cones; affects about 1% of men; ΔE 23 from the original

Deuteranopia#322D15no green cones; the most common form, about 1% of men; ΔE 23.5 from the original

Tritanopia#51121Ano blue cones; rare, and affects men and women equally; ΔE 8.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text14.47:1WCAG large text: AAA

Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Black · ΔE 30.8 Saddle brown · ΔE 34.1 Sienna · ΔE 35.3 Maroon · ΔE 36.6 Dim grey · ΔE 37.8 Brown · ΔE 38.5

Nearest named CSS colourBlack (#000000)ΔE 30.84, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#164449

Analogous#49162B, #493516

Triadic#16491B, #1B1649

Split complementary#164935, #162B49

Tetradic#2B4916, #164449, #341649

Tints, shades & saturation

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

Lighter +40%#CE685D

Lighter +30%#BF4639

Lighter +20%#97382E

Lighter +10%#702922

Darker −10%#220D0A

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#55110A

Less saturated −25%#3D2522

Channel breakdown

R73

G27

B22

Red73 (28.6%)

Green27 (10.6%)

Blue22 (8.6%)

Hue5.88°

Saturation (HSL)53.68%

Lightness18.63%

Dominant channelRed

Hex per channelR 49 · G 1B · B 16

Keep nerding

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

#491B16

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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