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Recognised as Colour

#491F91

  • #491F91
  • Violet
  • Dark
  • Nearest: Indigo

#491F91 is a violet with RGB values 73, 31, 145 and HSL 262°, 65%, 35%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#491F91#491F91
HEX#491F91
RGBrgb(73, 31, 145)
RGB (0–1)0.2863, 0.1216, 0.5686
RGB percentages28.6%, 12.2%, 56.9%
HSLhsl(262.1, 64.8%, 34.5%)
HSV / HSBhsv(262.1, 78.6%, 56.9%)
CMYK49.7%, 78.6%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,792,209
CSS custom property--colour: #491F91;

Brightness & contrast

Relative luminance0.04441WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.12:1
Contrast with white11.12:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#B6E06E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003D94no red cones; affects about 1% of men; ΔE 25.7 from the original
Deuteranopia#00398Fno green cones; the most common form, about 1% of men; ΔE 24.9 from the original
Tritanopia#323F57no blue cones; rare, and affects men and women equally; ΔE 58.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.12:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Indigo · ΔE 8.2Rebecca purple · ΔE 11.4Navy · ΔE 15.6Midnight blue · ΔE 17.2Dark blue · ΔE 17.8Slate blue · ΔE 22.4
Nearest named CSS colourIndigo (#4B0082)ΔE 8.17, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#67911F
Analogous#1F2E91, #821F91
Triadic#91491F, #1F9149
Split complementary#91821F, #2E911F
Tetradic#911F2E, #67911F, #1F9182

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B394E8
Lighter +30%#956ADF
Lighter +20%#7740D6
Lighter +10%#5E28BB
Darker −10%#341667
Darker −20%#1F0D3D
Darker −30%#0A0413
Darker −40%#000000
More saturated +25%#4309A7
Less saturated −25%#4F357B

Channel breakdown

R73
G31
B145
Red73 (28.6%)
Green31 (12.2%)
Blue145 (56.9%)
Hue262.11°
Saturation (HSL)64.77%
Lightness34.51%
Dominant channelBlue
Hex per channelR 49 · G 1F · B 91

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Every value on this page was computed from “491f91” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.