Recognised as Colour

#A6161E

#A6161E
Red
Dark
Nearest: Firebrick

#A6161E is a red with RGB values 166, 22, 30 and HSL 357°, 77%, 37%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A6161E#A6161E

HEX#A6161E

RGBrgb(166, 22, 30)

RGB (0–1)0.651, 0.0863, 0.1176

RGB percentages65.1%, 8.6%, 11.8%

HSLhsl(356.7, 76.6%, 36.9%)

HSV / HSBhsv(356.7, 86.7%, 65.1%)

CMYK0%, 86.7%, 81.9%, 34.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,884,638

CSS custom property--colour: #A6161E;

Brightness & contrast

Relative luminance0.08775WCAG 2.x, 0 is black and 1 is white

Perceived brightness92.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.62:1

Contrast with white7.62:1WCAG normal text: AAA

Contrast with black2.75:1WCAG normal text: Fail

Greyscale equivalent#353535

Inverted#59E9E1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#47401Cno red cones; affects about 1% of men; ΔE 59.8 from the original

Deuteranopia#6A5E17no green cones; the most common form, about 1% of men; ΔE 59.3 from the original

Tritanopia#B7001Cno blue cones; rare, and affects men and women equally; ΔE 9.3 from the original

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

Contrast with white, large text7.62:1WCAG large text: AAA

Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Firebrick · ΔE 4.2 Brown · ΔE 7.8 Dark red · ΔE 10.4 Maroon · ΔE 12.6 Crimson · ΔE 19.5 Indian red · ΔE 24.7

Nearest named CSS colourFirebrick (#B22222)ΔE 4.19, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#16A69E

Analogous#A61666, #A65616

Triadic#1EA616, #161EA6

Split complementary#16A656, #1666A6

Tetradic#66A616, #16A69E, #5616A6

Tints, shades & saturation

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

Lighter +40%#F1979C

Lighter +30%#EB6A71

Lighter +20%#E53D46

Lighter +10%#D31C26

Darker −10%#791016

Darker −20%#4C0A0E

Darker −30%#1F0406

Darker −40%#000000

More saturated +25%#BC000A

Less saturated −25%#8F2D33

Channel breakdown

R166

G22

B30

Red166 (65.1%)

Green22 (8.6%)

Blue30 (11.8%)

Hue356.67°

Saturation (HSL)76.6%

Lightness36.86%

Dominant channelRed

Hex per channelR A6 · G 16 · B 1E

Keep nerding

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

#A6161E

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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