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Colour

#3F375D

  • #3F375D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3F375D is a blue with RGB values 63, 55, 93 and HSL 253°, 26%, 29%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3F375D#3F375D
HEX#3F375D
RGBrgb(63, 55, 93)
RGB (0–1)0.2471, 0.2157, 0.3647
RGB percentages24.7%, 21.6%, 36.5%
HSLhsl(252.6, 25.7%, 29%)
HSV / HSBhsv(252.6, 40.9%, 36.5%)
CMYK32.3%, 40.9%, 0%, 63.5%naive device-independent conversion; real print needs an ICC profile
24-bit integer4,142,941
CSS custom property--colour: #3F375D;

Brightness & contrast

Relative luminance0.04579WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.96:1
Contrast with white10.96:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#C0C8A2

Colour vision & accessibility

Protanopia#2C3D5Eno red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#2D3C5Cno green cones; the most common form, about 1% of men; ΔE 9.3 from the original
Tritanopia#383E45no blue cones; rare, and affects men and women equally; ΔE 21.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.96:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#555D37
Analogous#37425D, #52375D
Triadic#5D3F37, #375D3F
Split complementary#5D5237, #425D37
Tetradic#5D3742, #555D37, #375D52

Tints, shades & saturation

Lighter +40%#A49CC4
Lighter +30%#877CB1
Lighter +20%#6A5D9D
Lighter +10%#554A7D
Darker −10%#29243D
Darker −20%#14111D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#342470
Less saturated −25%#4A4A4A

Channel breakdown

R63
G55
B93
Red63 (24.7%)
Green55 (21.6%)
Blue93 (36.5%)
Hue252.63°
Saturation (HSL)25.68%
Lightness29.02%
Dominant channelBlue
Hex per channelR 3F · G 37 · B 5D

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Every value on this page was computed from “3f375d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.