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Recognised as Colour

#3F3749

  • #3F3749
  • Violet
  • Dark
  • Nearest: Dark slate grey

#3F3749 is a violet with RGB values 63, 55, 73 and HSL 267°, 14%, 25%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F3749#3F3749
HEX#3F3749
RGBrgb(63, 55, 73)
RGB (0–1)0.2471, 0.2157, 0.2863
RGB percentages24.7%, 21.6%, 28.6%
HSLhsl(266.7, 14.1%, 25.1%)
HSV / HSBhsv(266.7, 24.7%, 28.6%)
CMYK13.7%, 24.7%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,142,921
CSS custom property--colour: #3F3749;

Brightness & contrast

Relative luminance0.0427WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.33:1
Contrast with white11.33:1WCAG normal text: AAA
Contrast with black1.85:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#C0C8B6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#343A4Ano red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#353A48no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#3E393Dno blue cones; rare, and affects men and women equally; ΔE 9.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.33:1WCAG large text: AAA
Contrast with black, large text1.85:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.4Dim grey · ΔE 23.4Black · ΔE 27.5Slate grey · ΔE 30Gray · ΔE 31.6Light slate grey · ΔE 32.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.41, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#414937
Analogous#373849, #483749
Triadic#493F37, #37493F
Split complementary#494837, #384937
Tetradic#493738, #414937, #374948

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A599B3
Lighter +30%#8B7C9D
Lighter +20%#716383
Lighter +10%#584D66
Darker −10%#26212C
Darker −20%#0D0B0F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#3D2759
Less saturated −25%#404040

Channel breakdown

R63
G55
B73
Red63 (24.7%)
Green55 (21.6%)
Blue73 (28.6%)
Hue266.67°
Saturation (HSL)14.06%
Lightness25.1%
Dominant channelBlue
Hex per channelR 3F · G 37 · B 49

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Every value on this page was computed from “3f3749” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.