Recognised as Colour

#3F665C

#3F665C
Cyan
Dark
Nearest: Dark slate grey

#3F665C is a cyan with RGB values 63, 102, 92 and HSL 165°, 24%, 32%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F665C#3F665C

HEX#3F665C

RGBrgb(63, 102, 92)

RGB (0–1)0.2471, 0.4, 0.3608

RGB percentages24.7%, 40%, 36.1%

HSLhsl(164.6, 23.6%, 32.4%)

HSV / HSBhsv(164.6, 38.2%, 40%)

CMYK38.2%, 0%, 9.8%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,154,972

CSS custom property--colour: #3F665C;

Brightness & contrast

Relative luminance0.11332WCAG 2.x, 0 is black and 1 is white

Perceived brightness90.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.43:1

Contrast with white6.43:1WCAG normal text: AA

Contrast with black3.27:1WCAG normal text: Fail

Greyscale equivalent#5D5D5D

Inverted#C099A3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#63615Cno red cones; affects about 1% of men; ΔE 16.3 from the original

Deuteranopia#5C5D5Dno green cones; the most common form, about 1% of men; ΔE 16 from the original

Tritanopia#336763no blue cones; rare, and affects men and women equally; ΔE 4.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.43:1WCAG large text: AAA

Contrast with black, large text3.27:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 11.2 Dim grey · ΔE 16.9 Teal · ΔE 17.8 Gray · ΔE 21.2 Dark cyan · ΔE 21.3 Slate grey · ΔE 22.4

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.2, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#663F49

Analogous#3F6649, #3F5C66

Triadic#5C3F66, #665C3F

Split complementary#663F5C, #66493F

Tetradic#483F66, #663F49, #5C663F

Tints, shades & saturation

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

Lighter +40%#A8C9C1

Lighter +30%#88B6AA

Lighter +20%#69A293

Lighter +10%#528678

Darker −10%#2C4640

Darker −20%#182723

Darker −30%#050707

Darker −40%#000000

More saturated +25%#2A7B66

Less saturated −25%#525252

Channel breakdown

R63

G102

B92

Red63 (24.7%)

Green102 (40%)

Blue92 (36.1%)

Hue164.62°

Saturation (HSL)23.64%

Lightness32.35%

Dominant channelGreen

Hex per channelR 3F · G 66 · B 5C

Keep nerding

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

#3F665C

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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