Colour

#A60006

#A60006
Red
Dark
Nearest: Firebrick

#A60006 is a red with RGB values 166, 0, 6 and HSL 358°, 100%, 33%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A60006#A60006

HEX#A60006

RGBrgb(166, 0, 6)

RGB (0–1)0.651, 0, 0.0235

RGB percentages65.1%, 0%, 2.4%

HSLhsl(357.8, 100%, 32.5%)

HSV / HSBhsv(357.8, 100%, 65.1%)

CMYK0%, 100%, 96.4%, 34.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,878,982

CSS custom property--colour: #A60006;

Brightness & contrast

Relative luminance0.0812WCAG 2.x, 0 is black and 1 is white

Perceived brightness90.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8:1

Contrast with white8:1WCAG normal text: AAA

Contrast with black2.62:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#59FFF9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443B01no red cones; affects about 1% of men; ΔE 62.9 from the original

Deuteranopia#685C00no green cones; the most common form, about 1% of men; ΔE 62.6 from the original

Tritanopia#B80008no blue cones; rare, and affects men and women equally; ΔE 7 from the original

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

Contrast with white, large text8:1WCAG large text: AAA

Contrast with black, large text2.62:1WCAG large text: Fail

Named colours

Firebrick · ΔE 9.9 Dark red · ΔE 10.5 Maroon · ΔE 15.5 Brown · ΔE 17.9 Crimson · ΔE 21.9 Tomato · ΔE 28

Nearest named CSS colourFirebrick (#B22222)ΔE 9.94, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00A6A0

Analogous#A60059, #A64D00

Triadic#06A600, #0006A6

Split complementary#00A64D, #0059A6

Tetradic#59A600, #00A6A0, #4D00A6

Tints, shades & saturation

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

Lighter +40%#FF7378

Lighter +30%#FF4047

Lighter +20%#FF0D16

Lighter +10%#D90008

Darker −10%#730004

Darker −20%#400002

Darker −30%#0D0000

Darker −40%#000000

More saturated +25%#A60006

Less saturated −25%#911519

Channel breakdown

R166

Red166 (65.1%)

Green0 (0%)

Blue6 (2.4%)

Hue357.83°

Saturation (HSL)100%

Lightness32.55%

Dominant channelRed

Hex per channelR A6 · G 00 · B 06

Keep nerding

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#A60006

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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