Recognised as Colour

#66313E

#66313E
Red
Dark
Nearest: Dim grey

#66313E is a red with RGB values 102, 49, 62 and HSL 345°, 35%, 30%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#66313E#66313E

HEX#66313E

RGBrgb(102, 49, 62)

RGB (0–1)0.4, 0.1922, 0.2431

RGB percentages40%, 19.2%, 24.3%

HSLhsl(345.3, 35.1%, 29.6%)

HSV / HSBhsv(345.3, 52%, 40%)

CMYK0%, 52%, 39.2%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,697,278

CSS custom property--colour: #66313E;

Brightness & contrast

Relative luminance0.05369WCAG 2.x, 0 is black and 1 is white

Perceived brightness70.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.13:1

Contrast with white10.13:1WCAG normal text: AAA

Contrast with black2.07:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#99CEC1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3A3B3Eno red cones; affects about 1% of men; ΔE 25.7 from the original

Deuteranopia#48453Dno green cones; the most common form, about 1% of men; ΔE 25.9 from the original

Tritanopia#6E2C36no blue cones; rare, and affects men and women equally; ΔE 7.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.13:1WCAG large text: AAA

Contrast with black, large text2.07:1WCAG large text: Fail

Named colours

Dim grey · ΔE 30.4 Gray · ΔE 36.3 Sienna · ΔE 36.7 Rosy brown · ΔE 37 Indian red · ΔE 37.5 Black · ΔE 37.7

Nearest named CSS colourDim grey (#696969)ΔE 30.44, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#316659

Analogous#663159, #663E31

Triadic#3E6631, #313E66

Split complementary#31663E, #315966

Tetradic#596631, #316659, #3E3166

Tints, shades & saturation

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

Lighter +40%#CD96A4

Lighter +30%#BC7486

Lighter +20%#AB5268

Lighter +10%#884253

Darker −10%#442029

Darker −20%#211014

Darker −30%#000000

Darker −40%#000000

More saturated +25%#791E34

Less saturated −25%#534448

Channel breakdown

R102

G49

B62

Red102 (40%)

Green49 (19.2%)

Blue62 (24.3%)

Hue345.28°

Saturation (HSL)35.1%

Lightness29.61%

Dominant channelRed

Hex per channelR 66 · G 31 · B 3E

Keep nerding

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

#66313E

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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