Recognised as Colour

#663A43

#663A43
Red
Dark
Nearest: Dim grey

#663A43 is a red with RGB values 102, 58, 67 and HSL 348°, 28%, 31%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#663A43#663A43

HEX#663A43

RGBrgb(102, 58, 67)

RGB (0–1)0.4, 0.2275, 0.2627

RGB percentages40%, 22.7%, 26.3%

HSLhsl(347.7, 27.5%, 31.4%)

HSV / HSBhsv(347.7, 43.1%, 40%)

CMYK0%, 43.1%, 34.3%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,699,587

CSS custom property--colour: #663A43;

Brightness & contrast

Relative luminance0.06256WCAG 2.x, 0 is black and 1 is white

Perceived brightness74.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.33:1

Contrast with white9.33:1WCAG normal text: AAA

Contrast with black2.25:1WCAG normal text: Fail

Greyscale equivalent#444444

Inverted#99C5BC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#414243no red cones; affects about 1% of men; ΔE 21.3 from the original

Deuteranopia#4C4A42no green cones; the most common form, about 1% of men; ΔE 21.6 from the original

Tritanopia#6D363Dno blue cones; rare, and affects men and women equally; ΔE 6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text9.33:1WCAG large text: AAA

Contrast with black, large text2.25:1WCAG large text: Fail

Named colours

Dim grey · ΔE 25.3 Gray · ΔE 31.5 Dark slate grey · ΔE 33.1 Rosy brown · ΔE 34 Slate grey · ΔE 34.9 Sienna · ΔE 36.6

Nearest named CSS colourDim grey (#696969)ΔE 25.34, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3A665D

Analogous#663A59, #66473A

Triadic#43663A, #3A4366

Split complementary#3A6647, #3A5966

Tetradic#59663A, #3A665D, #473A66

Tints, shades & saturation

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

Lighter +40%#CAA2AA

Lighter +30%#B8818C

Lighter +20%#A5616F

Lighter +10%#874C58

Darker −10%#45282E

Darker −20%#251518

Darker −30%#040303

Darker −40%#000000

More saturated +25%#7A2637

Less saturated −25%#524E4F

Channel breakdown

R102

G58

B67

Red102 (40%)

Green58 (22.7%)

Blue67 (26.3%)

Hue347.73°

Saturation (HSL)27.5%

Lightness31.37%

Dominant channelRed

Hex per channelR 66 · G 3A · B 43

Keep nerding

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

#663A43

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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