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Recognised as Colour

#5B40E0

  • #5B40E0
  • Blue
  • Dark
  • Nearest: Blue violet

#5B40E0 is a blue with RGB values 91, 64, 224 and HSL 250°, 72%, 56%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#5B40E0#5B40E0
HEX#5B40E0
RGBrgb(91, 64, 224)
RGB (0–1)0.3569, 0.251, 0.8784
RGB percentages35.7%, 25.1%, 87.8%
HSLhsl(250.1, 72.1%, 56.5%)
HSV / HSBhsv(250.1, 71.4%, 87.8%)
CMYK59.4%, 71.4%, 0%, 12.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,980,384
CSS custom property--colour: #5B40E0;

Brightness & contrast

Relative luminance0.11273WCAG 2.x, 0 is black and 1 is white
Perceived brightness103 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.45:1
Contrast with white6.45:1WCAG normal text: AA
Contrast with black3.25:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#A4BF1F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064E5no red cones; affects about 1% of men; ΔE 28.5 from the original
Deuteranopia#0059DDno green cones; the most common form, about 1% of men; ΔE 23.8 from the original
Tritanopia#006C8Cno blue cones; rare, and affects men and women equally; ΔE 85.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.45:1WCAG large text: AAA
Contrast with black, large text3.25:1WCAG large text: AA

Named colours

Blue violet · ΔE 16.3Dark orchid · ΔE 20.9Medium slateblue · ΔE 21.3Dark violet · ΔE 23.5Medium blue · ΔE 24.6Dark blue · ΔE 26.9
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 16.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C5E040
Analogous#4075E0, #AB40E0
Triadic#E05B40, #40E05B
Split complementary#E0AB40, #75E040
Tetradic#E04075, #C5E040, #40E0AB

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F2F0FC
Lighter +30%#CCC4F5
Lighter +20%#A698EE
Lighter +10%#816CE7
Darker −10%#3E21CC
Darker −20%#311AA0
Darker −30%#231374
Darker −40%#160C48
More saturated +25%#4924FC
Less saturated −25%#6D5CC4

Channel breakdown

R91
G64
B224
Red91 (35.7%)
Green64 (25.1%)
Blue224 (87.8%)
Hue250.13°
Saturation (HSL)72.07%
Lightness56.47%
Dominant channelBlue
Hex per channelR 5B · G 40 · B E0

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Every value on this page was computed from “5b40e0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.