Colour

#664A52

#664A52
Red
Dark
Nearest: Dim grey

#664A52 is a red with RGB values 102, 74, 82 and HSL 343°, 16%, 35%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#664A52#664A52

HEX#664A52

RGBrgb(102, 74, 82)

RGB (0–1)0.4, 0.2902, 0.3216

RGB percentages40%, 29%, 32.2%

HSLhsl(342.9, 15.9%, 34.5%)

HSV / HSBhsv(342.9, 27.5%, 40%)

CMYK0%, 27.5%, 19.6%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,703,698

CSS custom property--colour: #664A52;

Brightness & contrast

Relative luminance0.08332WCAG 2.x, 0 is black and 1 is white

Perceived brightness84.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.88:1

Contrast with white7.88:1WCAG normal text: AAA

Contrast with black2.67:1WCAG normal text: Fail

Greyscale equivalent#515151

Inverted#99B5AD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4D4F52no red cones; affects about 1% of men; ΔE 13.6 from the original

Deuteranopia#545351no green cones; the most common form, about 1% of men; ΔE 13.4 from the original

Tritanopia#6B494Dno blue cones; rare, and affects men and women equally; ΔE 4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text7.88:1WCAG large text: AAA

Contrast with black, large text2.67:1WCAG large text: Fail

Named colours

Dim grey · ΔE 16.5 Gray · ΔE 23.1 Dark slate grey · ΔE 25.5 Slate grey · ΔE 26 Light slate grey · ΔE 28.5 Rosy brown · ΔE 29.9

Nearest named CSS colourDim grey (#696969)ΔE 16.46, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4A665E

Analogous#664A60, #66504A

Triadic#52664A, #4A5266

Split complementary#4A6650, #4A6066

Tetradic#60664A, #4A665E, #504A66

Tints, shades & saturation

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

Lighter +40%#C8B4BA

Lighter +30%#B3969E

Lighter +20%#9D7983

Lighter +10%#845F6A

Darker −10%#48353A

Darker −20%#2B1F22

Darker −30%#0D0A0B

Darker −40%#000000

More saturated +25%#7C3449

Less saturated −25%#585858

Channel breakdown

R102

G74

B82

Red102 (40%)

Green74 (29%)

Blue82 (32.2%)

Hue342.86°

Saturation (HSL)15.91%

Lightness34.51%

Dominant channelRed

Hex per channelR 66 · G 4A · B 52

Keep nerding

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

#664A52

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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