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Recognised as Colour

#3F3D85

  • #3F3D85
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3F3D85 is a blue with RGB values 63, 61, 133 and HSL 242°, 37%, 38%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3F3D85#3F3D85
HEX#3F3D85
RGBrgb(63, 61, 133)
RGB (0–1)0.2471, 0.2392, 0.5216
RGB percentages24.7%, 23.9%, 52.2%
HSLhsl(241.7, 37.1%, 38%)
HSV / HSBhsv(241.7, 54.1%, 52.2%)
CMYK52.6%, 54.1%, 0%, 47.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,144,517
CSS custom property--colour: #3F3D85;

Brightness & contrast

Relative luminance0.06088WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.47:1
Contrast with white9.47:1WCAG normal text: AAA
Contrast with black2.22:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#C0C27A

Colour vision & accessibility

Protanopia#174888no red cones; affects about 1% of men; ΔE 13.3 from the original
Deuteranopia#0F4383no green cones; the most common form, about 1% of men; ΔE 12.7 from the original
Tritanopia#234D5Bno blue cones; rare, and affects men and women equally; ΔE 42.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.47:1WCAG large text: AAA
Contrast with black, large text2.22:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slateblue (#483D8B)ΔE 4.58, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#83853D
Analogous#3D5F85, #633D85
Triadic#853F3D, #3D853F
Split complementary#85633D, #5F853D
Tetradic#853D5F, #83853D, #3D8563

Tints, shades & saturation

Lighter +40%#B3B2DC
Lighter +30%#918FCC
Lighter +20%#6E6CBC
Lighter +10%#504DA8
Darker −10%#2E2D62
Darker −20%#1E1D3F
Darker −30%#0D0D1C
Darker −40%#000000
More saturated +25%#28259D
Less saturated −25%#56556D

Channel breakdown

R63
G61
B133
Red63 (24.7%)
Green61 (23.9%)
Blue133 (52.2%)
Hue241.67°
Saturation (HSL)37.11%
Lightness38.04%
Dominant channelBlue
Hex per channelR 3F · G 3D · B 85

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Every value on this page was computed from “3f3d85” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.