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Recognised as Colour

#4000B5

  • #4000B5
  • Violet
  • Dark
  • Nearest: Medium blue

#4000B5 is a violet with RGB values 64, 0, 181 and HSL 261°, 100%, 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 Medium blue.

Colour values

#4000B5#4000B5
HEX#4000B5
RGBrgb(64, 0, 181)
RGB (0–1)0.251, 0, 0.7098
RGB percentages25.1%, 0%, 71%
HSLhsl(261.2, 100%, 35.5%)
HSV / HSBhsv(261.2, 100%, 71%)
CMYK64.6%, 100%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,194,485
CSS custom property--colour: #4000B5;

Brightness & contrast

Relative luminance0.04426WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.14:1
Contrast with white11.14:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#BFFF4A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0040B9no red cones; affects about 1% of men; ΔE 32.1 from the original
Deuteranopia#0036B2no green cones; the most common form, about 1% of men; ΔE 27.6 from the original
Tritanopia#004869no blue cones; rare, and affects men and women equally; ΔE 86.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.14:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Medium blue · ΔE 15.1Dark blue · ΔE 18.1Blue violet · ΔE 18.7Dark violet · ΔE 21.1Navy · ΔE 23Dark orchid · ΔE 25.2
Nearest named CSS colourMedium blue (#0000CD)ΔE 15.05, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#75B500
Analogous#001BB5, #9B00B5
Triadic#B54000, #00B540
Split complementary#B59A00, #1BB500
Tetradic#B5001B, #75B500, #00B59A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AE82FF
Lighter +30%#8D4FFF
Lighter +20%#6C1CFF
Lighter +10%#5200E8
Darker −10%#2E0082
Darker −20%#1C004F
Darker −30%#0A001C
Darker −40%#000000
More saturated +25%#4000B5
Less saturated −25%#47179E

Channel breakdown

R64
G0
B181
Red64 (25.1%)
Green0 (0%)
Blue181 (71%)
Hue261.22°
Saturation (HSL)100%
Lightness35.49%
Dominant channelBlue
Hex per channelR 40 · G 00 · B B5

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Every value on this page was computed from “4000b5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.