Recognised as Colour

#A83718

#A83718
Red
Dark
Nearest: Firebrick

#A83718 is a red with RGB values 168, 55, 24 and HSL 13°, 75%, 38%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#A83718#A83718

HEX#A83718

RGBrgb(168, 55, 24)

RGB (0–1)0.6588, 0.2157, 0.0941

RGB percentages65.9%, 21.6%, 9.4%

HSLhsl(12.9, 75%, 37.6%)

HSV / HSBhsv(12.9, 85.7%, 65.9%)

CMYK0%, 67.3%, 85.7%, 34.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,024,152

CSS custom property--colour: #A83718;

Brightness & contrast

Relative luminance0.11123WCAG 2.x, 0 is black and 1 is white

Perceived brightness101.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.51:1

Contrast with white6.51:1WCAG normal text: AA

Contrast with black3.22:1WCAG normal text: Fail

Greyscale equivalent#4D4D4D

Inverted#57C8E7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#584E12no red cones; affects about 1% of men; ΔE 49.4 from the original

Deuteranopia#746712no green cones; the most common form, about 1% of men; ΔE 49.4 from the original

Tritanopia#B91231no blue cones; rare, and affects men and women equally; ΔE 21.4 from the original

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

Contrast with white, large text6.51:1WCAG large text: AAA

Contrast with black, large text3.22:1WCAG large text: AA

Named colours

Firebrick · ΔE 12.1 Dark red · ΔE 13.3 Brown · ΔE 13.3 Maroon · ΔE 15.3 Sienna · ΔE 17.6 Saddle brown · ΔE 18.7

Nearest named CSS colourFirebrick (#B22222)ΔE 12.1, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1889A8

Analogous#A81841, #A87F18

Triadic#18A837, #3718A8

Split complementary#18A87F, #1841A8

Tetradic#41A818, #1889A8, #7F18A8

Tints, shades & saturation

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

Lighter +40%#F1AE9B

Lighter +30%#EA896F

Lighter +20%#E46542

Lighter +10%#D5461E

Darker −10%#7B2812

Darker −20%#4F1A0B

Darker −30%#220B05

Darker −40%#000000

More saturated +25%#C02900

Less saturated −25%#904530

Channel breakdown

R168

G55

B24

Red168 (65.9%)

Green55 (21.6%)

Blue24 (9.4%)

Hue12.92°

Saturation (HSL)75%

Lightness37.65%

Dominant channelRed

Hex per channelR A8 · G 37 · B 18

Keep nerding

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

#A83718

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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