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Recognised as Colour

#3B1155

  • #3B1155
  • Violet
  • Dark
  • Nearest: Midnight blue

#3B1155 is a violet with RGB values 59, 17, 85 and HSL 277°, 67%, 20%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#3B1155#3B1155
HEX#3B1155
RGBrgb(59, 17, 85)
RGB (0–1)0.2314, 0.0667, 0.3333
RGB percentages23.1%, 6.7%, 33.3%
HSLhsl(277.1, 66.7%, 20%)
HSV / HSBhsv(277.1, 80%, 33.3%)
CMYK30.6%, 80%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,871,061
CSS custom property--colour: #3B1155;

Brightness & contrast

Relative luminance0.01987WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.03:1
Contrast with white15.03:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#C4EEAA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002557no red cones; affects about 1% of men; ΔE 22.9 from the original
Deuteranopia#012754no green cones; the most common form, about 1% of men; ΔE 25.7 from the original
Tritanopia#372132no blue cones; rare, and affects men and women equally; ΔE 31.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.03:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 17.4Dark slateblue · ΔE 19.6Rebecca purple · ΔE 24.9Indigo · ΔE 28.5Purple · ΔE 29.8Dark magenta · ΔE 34.6
Nearest named CSS colourMidnight blue (#191970)ΔE 17.39, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2B5511
Analogous#191155, #55114D
Triadic#553B11, #11553B
Split complementary#4D5511, #115519
Tetradic#551911, #2B5511, #114D55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A955DD
Lighter +30%#932AD5
Lighter +20%#7622AA
Lighter +10%#581980
Darker −10%#1D092B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#3E0462
Less saturated −25%#381E48

Channel breakdown

R59
G17
B85
Red59 (23.1%)
Green17 (6.7%)
Blue85 (33.3%)
Hue277.06°
Saturation (HSL)66.67%
Lightness20%
Dominant channelBlue
Hex per channelR 3B · G 11 · B 55

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Every value on this page was computed from “3b1155” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.