Recognised as Colour

#66291E

#66291E
Red
Dark
Nearest: Saddle brown

#66291E is a red with RGB values 102, 41, 30 and HSL 9°, 55%, 26%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#66291E#66291E

HEX#66291E

RGBrgb(102, 41, 30)

RGB (0–1)0.4, 0.1608, 0.1176

RGB percentages40%, 16.1%, 11.8%

HSLhsl(9.2, 54.5%, 25.9%)

HSV / HSBhsv(9.2, 70.6%, 40%)

CMYK0%, 59.8%, 70.6%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,695,198

CSS custom property--colour: #66291E;

Brightness & contrast

Relative luminance0.04504WCAG 2.x, 0 is black and 1 is white

Perceived brightness64.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.05:1

Contrast with white11.05:1WCAG normal text: AAA

Contrast with black1.9:1WCAG normal text: Fail

Greyscale equivalent#353535

Inverted#99D6E1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#39341Dno red cones; affects about 1% of men; ΔE 29.2 from the original

Deuteranopia#48411Dno green cones; the most common form, about 1% of men; ΔE 29.4 from the original

Tritanopia#701D27no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

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

Contrast with white, large text11.05:1WCAG large text: AAA

Contrast with black, large text1.9:1WCAG large text: Fail

Named colours

Saddle brown · ΔE 23.7 Sienna · ΔE 24 Maroon · ΔE 27.6 Brown · ΔE 27.9 Dark red · ΔE 32.1 Indian red · ΔE 33.5

Nearest named CSS colourSaddle brown (#8B4513)ΔE 23.71, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1E5B66

Analogous#661E37, #664D1E

Triadic#1E6629, #291E66

Split complementary#1E664D, #1E3766

Tetradic#37661E, #1E5B66, #4D1E66

Tints, shades & saturation

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

Lighter +40%#D78779

Lighter +30%#CC6451

Lighter +20%#B54935

Lighter +10%#8D392A

Darker −10%#3F1912

Darker −20%#170907

Darker −30%#000000

Darker −40%#000000

More saturated +25%#771E0E

Less saturated −25%#56342F

Channel breakdown

R102

G41

B30

Red102 (40%)

Green41 (16.1%)

Blue30 (11.8%)

Hue9.17°

Saturation (HSL)54.55%

Lightness25.88%

Dominant channelRed

Hex per channelR 66 · G 29 · B 1E

Keep nerding

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

#66291E

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

Nerdulate something else