Recognised as Colour

#663B32

#663B32
Red
Dark
Nearest: Dim grey

#663B32 is a red with RGB values 102, 59, 50 and HSL 10°, 34%, 30%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#663B32#663B32

HEX#663B32

RGBrgb(102, 59, 50)

RGB (0–1)0.4, 0.2314, 0.1961

RGB percentages40%, 23.1%, 19.6%

HSLhsl(10.4, 34.2%, 29.8%)

HSV / HSBhsv(10.4, 51%, 40%)

CMYK0%, 42.2%, 51%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,699,826

CSS custom property--colour: #663B32;

Brightness & contrast

Relative luminance0.06183WCAG 2.x, 0 is black and 1 is white

Perceived brightness73.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.39:1

Contrast with white9.39:1WCAG normal text: AAA

Contrast with black2.24:1WCAG normal text: Fail

Greyscale equivalent#434343

Inverted#99C4CD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#454131no red cones; affects about 1% of men; ΔE 19.6 from the original

Deuteranopia#4F4A31no green cones; the most common form, about 1% of men; ΔE 20.4 from the original

Tritanopia#6F3539no blue cones; rare, and affects men and women equally; ΔE 9.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text9.39:1WCAG large text: AAA

Contrast with black, large text2.24:1WCAG large text: Fail

Named colours

Dim grey · ΔE 26.8 Sienna · ΔE 28.4 Saddle brown · ΔE 29.6 Gray · ΔE 32.7 Dark slate grey · ΔE 34.4 Rosy brown · ΔE 34.5

Nearest named CSS colourDim grey (#696969)ΔE 26.79, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#325D66

Analogous#663243, #665532

Triadic#32663B, #3B3266

Split complementary#326655, #324366

Tetradic#436632, #325D66, #553266

Tints, shades & saturation

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

Lighter +40%#CCA198

Lighter +30%#BC8275

Lighter +20%#AA6354

Lighter +10%#884F43

Darker −10%#442721

Darker −20%#221310

Darker −30%#000000

Darker −40%#000000

More saturated +25%#792F1F

Less saturated −25%#534745

Channel breakdown

R102

G59

B50

Red102 (40%)

Green59 (23.1%)

Blue50 (19.6%)

Hue10.38°

Saturation (HSL)34.21%

Lightness29.8%

Dominant channelRed

Hex per channelR 66 · G 3B · B 32

Keep nerding

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

#663B32

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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