Recognised as Colour

#A40716

#A40716
Red
Dark
Nearest: Firebrick

#A40716 is a red with RGB values 164, 7, 22 and HSL 354°, 92%, 34%. 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

#A40716#A40716

HEX#A40716

RGBrgb(164, 7, 22)

RGB (0–1)0.6431, 0.0275, 0.0863

RGB percentages64.3%, 2.7%, 8.6%

HSLhsl(354.3, 91.8%, 33.5%)

HSV / HSBhsv(354.3, 95.7%, 64.3%)

CMYK0%, 95.7%, 86.6%, 35.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,749,718

CSS custom property--colour: #A40716;

Brightness & contrast

Relative luminance0.08102WCAG 2.x, 0 is black and 1 is white

Perceived brightness90.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.01:1

Contrast with white8.01:1WCAG normal text: AAA

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

Greyscale equivalent#292929

Inverted#5BF8E9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443C14no red cones; affects about 1% of men; ΔE 61.4 from the original

Deuteranopia#675B0Bno green cones; the most common form, about 1% of men; ΔE 61.2 from the original

Tritanopia#B50011no blue cones; rare, and affects men and women equally; ΔE 9.1 from the original

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

Contrast with white, large text8.01:1WCAG large text: AAA

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

Named colours

Firebrick · ΔE 5.1 Dark red · ΔE 9 Brown · ΔE 11.3 Maroon · ΔE 12.5 Crimson · ΔE 19.6 Indian red · ΔE 28

Nearest named CSS colourFirebrick (#B22222)ΔE 5.11, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#07A495

Analogous#A40765, #A44607

Triadic#16A407, #0716A4

Split complementary#07A446, #0765A4

Tetradic#65A407, #07A495, #4607A4

Tints, shades & saturation

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

Lighter +40%#F97E89

Lighter +30%#F74D5D

Lighter +20%#F51C30

Lighter +10%#D5091D

Darker −10%#73050F

Darker −20%#420309

Darker −30%#110102

Darker −40%#000000

More saturated +25%#AB0010

Less saturated −25%#8F1C27

Channel breakdown

R164

B22

Red164 (64.3%)

Green7 (2.7%)

Blue22 (8.6%)

Hue354.27°

Saturation (HSL)91.81%

Lightness33.53%

Dominant channelRed

Hex per channelR A4 · G 07 · B 16

Keep nerding

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

#A40716

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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