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Recognised as Colour

#3A1689

  • #3A1689
  • Violet
  • Dark
  • Nearest: Indigo

#3A1689 is a violet with RGB values 58, 22, 137 and HSL 259°, 72%, 31%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#3A1689#3A1689
HEX#3A1689
RGBrgb(58, 22, 137)
RGB (0–1)0.2275, 0.0863, 0.5373
RGB percentages22.7%, 8.6%, 53.7%
HSLhsl(258.8, 72.3%, 31.2%)
HSV / HSBhsv(258.8, 83.9%, 53.7%)
CMYK57.7%, 83.9%, 0%, 46.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,806,857
CSS custom property--colour: #3A1689;

Brightness & contrast

Relative luminance0.0328WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.68:1
Contrast with white12.68:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#C5E976

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00358Cno red cones; affects about 1% of men; ΔE 23.6 from the original
Deuteranopia#003087no green cones; the most common form, about 1% of men; ΔE 22 from the original
Tritanopia#163951no blue cones; rare, and affects men and women equally; ΔE 62 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.68:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Indigo · ΔE 7.6Navy · ΔE 11.7Dark blue · ΔE 14.6Rebecca purple · ΔE 15.3Midnight blue · ΔE 15.9Dark slateblue · ΔE 25.8
Nearest named CSS colourIndigo (#4B0082)ΔE 7.61, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#658916
Analogous#162B89, #741689
Triadic#893A16, #16893A
Split complementary#897416, #2B8916
Tetradic#89162B, #658916, #168974

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A280EB
Lighter +30%#8154E4
Lighter +20%#6128DD
Lighter +10%#4D1DB5
Darker −10%#270F5D
Darker −20%#150831
Darker −30%#020105
Darker −40%#000000
More saturated +25%#33029D
Less saturated −25%#412A75

Channel breakdown

R58
G22
B137
Red58 (22.7%)
Green22 (8.6%)
Blue137 (53.7%)
Hue258.78°
Saturation (HSL)72.33%
Lightness31.18%
Dominant channelBlue
Hex per channelR 3A · G 16 · B 89

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Every value on this page was computed from “3a1689” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.