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Recognised as Colour

#3A1A42

  • #3A1A42
  • Violet
  • Dark
  • Nearest: Dark slateblue

#3A1A42 is a violet with RGB values 58, 26, 66 and HSL 288°, 43%, 18%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3A1A42#3A1A42
HEX#3A1A42
RGBrgb(58, 26, 66)
RGB (0–1)0.2275, 0.102, 0.2588
RGB percentages22.7%, 10.2%, 25.9%
HSLhsl(288, 43.5%, 18%)
HSV / HSBhsv(288, 60.6%, 25.9%)
CMYK12.1%, 60.6%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,807,810
CSS custom property--colour: #3A1A42;

Brightness & contrast

Relative luminance0.02032WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.93:1
Contrast with white14.93:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#C5E5BD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#122543no red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#1D2841no green cones; the most common form, about 1% of men; ΔE 19.7 from the original
Tritanopia#3A202Bno blue cones; rare, and affects men and women equally; ΔE 19 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.93:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.9Midnight blue · ΔE 31.9Black · ΔE 33.8Rebecca purple · ΔE 38.5Dark slate grey · ΔE 41.2Dim grey · ΔE 41.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.91, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#22421A
Analogous#261A42, #421A36
Triadic#423A1A, #1A423A
Split complementary#36421A, #1A4226
Tetradic#42261A, #22421A, #1A3642

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B065C3
Lighter +30%#9A45B0
Lighter +20%#7A378B
Lighter +10%#5A2867
Darker −10%#1A0C1D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#410F4E
Less saturated −25%#332637

Channel breakdown

R58
G26
B66
Red58 (22.7%)
Green26 (10.2%)
Blue66 (25.9%)
Hue288°
Saturation (HSL)43.48%
Lightness18.04%
Dominant channelBlue
Hex per channelR 3A · G 1A · B 42

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Every value on this page was computed from “3a1a42” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.