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Recognised as Colour

#2A1FA5

  • #2A1FA5
  • Blue
  • Dark
  • Nearest: Dark blue

#2A1FA5 is a blue with RGB values 42, 31, 165 and HSL 245°, 68%, 38%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#2A1FA5#2A1FA5
HEX#2A1FA5
RGBrgb(42, 31, 165)
RGB (0–1)0.1647, 0.1216, 0.6471
RGB percentages16.5%, 12.2%, 64.7%
HSLhsl(244.9, 68.4%, 38.4%)
HSV / HSBhsv(244.9, 81.2%, 64.7%)
CMYK74.5%, 81.2%, 0%, 35.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,760,613
CSS custom property--colour: #2A1FA5;

Brightness & contrast

Relative luminance0.04189WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.43:1
Contrast with white11.43:1WCAG normal text: AAA
Contrast with black1.84:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#D5E05A

Colour vision & accessibility

Protanopia#0040A9no red cones; affects about 1% of men; ΔE 23.5 from the original
Deuteranopia#0033A3no green cones; the most common form, about 1% of men; ΔE 15.8 from the original
Tritanopia#004963no blue cones; rare, and affects men and women equally; ΔE 74.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.43:1WCAG large text: AAA
Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark blue (#00008B)ΔE 9.94, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#9AA51F
Analogous#1F57A5, #6D1FA5
Triadic#A52A1F, #1FA52A
Split complementary#A56D1F, #57A51F
Tetradic#A51F57, #9AA51F, #1FA56D

Tints, shades & saturation

Lighter +40%#A9A2EE
Lighter +30%#8077E6
Lighter +20%#584DDD
Lighter +10%#3527D0
Darker −10%#1F177A
Darker −20%#140F4F
Darker −30%#090724
Darker −40%#000000
More saturated +25%#1607BE
Less saturated −25%#3E388D

Channel breakdown

R42
G31
B165
Red42 (16.5%)
Green31 (12.2%)
Blue165 (64.7%)
Hue244.93°
Saturation (HSL)68.37%
Lightness38.43%
Dominant channelBlue
Hex per channelR 2A · G 1F · B A5

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Every value on this page was computed from “2a1fa5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.