Recognised as Colour

#A61833

#A61833
Red
Dark
Nearest: Brown

#A61833 is a red with RGB values 166, 24, 51 and HSL 349°, 75%, 37%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A61833#A61833

HEX#A61833

RGBrgb(166, 24, 51)

RGB (0–1)0.651, 0.0941, 0.2

RGB percentages65.1%, 9.4%, 20%

HSLhsl(348.6, 74.7%, 37.3%)

HSV / HSBhsv(348.6, 85.5%, 65.1%)

CMYK0%, 85.5%, 69.3%, 34.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,885,171

CSS custom property--colour: #A61833;

Brightness & contrast

Relative luminance0.08999WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.5:1

Contrast with white7.5:1WCAG normal text: AAA

Contrast with black2.8:1WCAG normal text: Fail

Greyscale equivalent#383838

Inverted#59E7CC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#464233no red cones; affects about 1% of men; ΔE 59 from the original

Deuteranopia#695F2Fno green cones; the most common form, about 1% of men; ΔE 59.1 from the original

Tritanopia#B70025no blue cones; rare, and affects men and women equally; ΔE 14.4 from the original

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

Contrast with white, large text7.5:1WCAG large text: AAA

Contrast with black, large text2.8:1WCAG large text: Fail

Named colours

Brown · ΔE 9.6 Firebrick · ΔE 14.8 Maroon · ΔE 19.7 Dark red · ΔE 20.3 Indian red · ΔE 20.5 Crimson · ΔE 21.5

Nearest named CSS colourBrown (#A52A2A)ΔE 9.61, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#18A68B

Analogous#A6187A, #A64418

Triadic#33A618, #1833A6

Split complementary#18A644, #187AA6

Tetradic#7AA618, #18A68B, #4418A6

Tints, shades & saturation

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

Lighter +40%#F09AAA

Lighter +30%#EA6D85

Lighter +20%#E34160

Lighter +10%#D31E41

Darker −10%#791225

Darker −20%#4D0B18

Darker −30%#20050A

Darker −40%#000000

More saturated +25%#BE0024

Less saturated −25%#8E3042

Channel breakdown

R166

G24

B51

Red166 (65.1%)

Green24 (9.4%)

Blue51 (20%)

Hue348.59°

Saturation (HSL)74.74%

Lightness37.25%

Dominant channelRed

Hex per channelR A6 · G 18 · B 33

Keep nerding

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

#A61833

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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