Recognised as Colour

#A61604

#A61604
Red
Dark
Nearest: Dark red

#A61604 is a red with RGB values 166, 22, 4 and HSL 7°, 95%, 33%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#A61604#A61604

HEX#A61604

RGBrgb(166, 22, 4)

RGB (0–1)0.651, 0.0863, 0.0157

RGB percentages65.1%, 8.6%, 1.6%

HSLhsl(6.7, 95.3%, 33.3%)

HSV / HSBhsv(6.7, 97.6%, 65.1%)

CMYK0%, 86.7%, 97.6%, 34.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,884,612

CSS custom property--colour: #A61604;

Brightness & contrast

Relative luminance0.0869WCAG 2.x, 0 is black and 1 is white

Perceived brightness92.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.67:1

Contrast with white7.67:1WCAG normal text: AAA

Contrast with black2.74:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#59E9FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#493F00no red cones; affects about 1% of men; ΔE 59.3 from the original

Deuteranopia#6B5E00no green cones; the most common form, about 1% of men; ΔE 58.9 from the original

Tritanopia#B80015no blue cones; rare, and affects men and women equally; ΔE 9.2 from the original

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

Contrast with white, large text7.67:1WCAG large text: AAA

Contrast with black, large text2.74:1WCAG large text: Fail

Named colours

Dark red · ΔE 10.3 Firebrick · ΔE 10.5 Maroon · ΔE 15.2 Brown · ΔE 17.8 Crimson · ΔE 24.2 Tomato · ΔE 27

Nearest named CSS colourDark red (#8B0000)ΔE 10.27, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0494A6

Analogous#A60443, #A66704

Triadic#04A616, #1604A6

Split complementary#04A667, #0443A6

Tetradic#43A604, #0494A6, #6704A6

Tints, shades & saturation

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

Lighter +40%#FC897A

Lighter +30%#FB5C48

Lighter +20%#F93017

Lighter +10%#D81D05

Darker −10%#740F03

Darker −20%#420902

Darker −30%#110200

Darker −40%#000000

More saturated +25%#AA1300

Less saturated −25%#912719

Channel breakdown

R166

G22

Red166 (65.1%)

Green22 (8.6%)

Blue4 (1.6%)

Hue6.67°

Saturation (HSL)95.29%

Lightness33.33%

Dominant channelRed

Hex per channelR A6 · G 16 · B 04

Keep nerding

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

#A61604

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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