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Recognised as Colour

#3F1554

  • #3F1554
  • Violet
  • Dark
  • Nearest: Dark slateblue

#3F1554 is a violet with RGB values 63, 21, 84 and HSL 280°, 60%, 21%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3F1554#3F1554
HEX#3F1554
RGBrgb(63, 21, 84)
RGB (0–1)0.2471, 0.0824, 0.3294
RGB percentages24.7%, 8.2%, 32.9%
HSLhsl(280, 60%, 20.6%)
HSV / HSBhsv(280, 75%, 32.9%)
CMYK25%, 75%, 0%, 67.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,134,228
CSS custom property--colour: #3F1554;

Brightness & contrast

Relative luminance0.02233WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.52:1
Contrast with white14.52:1WCAG normal text: AAA
Contrast with black1.45:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#C0EAAB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002756no red cones; affects about 1% of men; ΔE 23.7 from the original
Deuteranopia#0E2A53no green cones; the most common form, about 1% of men; ΔE 25.6 from the original
Tritanopia#3D2232no blue cones; rare, and affects men and women equally; ΔE 29.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.52:1WCAG large text: AAA
Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19.8Midnight blue · ΔE 20.1Rebecca purple · ΔE 26.4Purple · ΔE 30.8Indigo · ΔE 31.2Dark magenta · ΔE 35.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.82, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2A5415
Analogous#201554, #541549
Triadic#543F15, #15543F
Split complementary#4A5415, #15541F
Tetradic#541F15, #2A5415, #154A54

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AF5ED7
Lighter +30%#9A35CD
Lighter +20%#7C29A6
Lighter +10%#5E1F7D
Darker −10%#200B2B
Darker −20%#020102
Darker −30%#000000
Darker −40%#000000
More saturated +25%#430861
Less saturated −25%#3B2247

Channel breakdown

R63
G21
B84
Red63 (24.7%)
Green21 (8.2%)
Blue84 (32.9%)
Hue280°
Saturation (HSL)60%
Lightness20.59%
Dominant channelBlue
Hex per channelR 3F · G 15 · B 54

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Every value on this page was computed from “3f1554” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.