Nerdulator> put something in

Recognised as Colour

#640BE4

  • #640BE4
  • Violet
  • Dark
  • Nearest: Medium blue

#640BE4 is a violet with RGB values 100, 11, 228 and HSL 265°, 91%, 47%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#640BE4#640BE4
HEX#640BE4
RGBrgb(100, 11, 228)
RGB (0–1)0.3922, 0.0431, 0.8941
RGB percentages39.2%, 4.3%, 89.4%
HSLhsl(264.6, 90.8%, 46.9%)
HSV / HSBhsv(264.6, 95.2%, 89.4%)
CMYK56.1%, 95.2%, 0%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,556,644
CSS custom property--colour: #640BE4;

Brightness & contrast

Relative luminance0.0855WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.75:1
Contrast with white7.75:1WCAG normal text: AAA
Contrast with black2.71:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#9BF41B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057E9no red cones; affects about 1% of men; ΔE 39.3 from the original
Deuteranopia#004DE1no green cones; the most common form, about 1% of men; ΔE 35.4 from the original
Tritanopia#285C86no blue cones; rare, and affects men and women equally; ΔE 97 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.75:1WCAG large text: AAA
Contrast with black, large text2.71:1WCAG large text: Fail

Named colours

Medium blue · ΔE 12.8Blue violet · ΔE 15.4Dark violet · ΔE 18.1Blue · ΔE 21Dark orchid · ΔE 30.2Dark blue · ΔE 36.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 12.78, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8BE40B
Analogous#0B1FE4, #D00BE4
Triadic#E4640B, #0BE464
Split complementary#E4D00B, #1FE40B
Tetradic#E40B1F, #8BE40B, #0BE4D0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D8BFFC
Lighter +30%#BA8EFA
Lighter +20%#9D5EF7
Lighter +10%#7F2DF5
Darker −10%#4F09B3
Darker −20%#390683
Darker −30%#240452
Darker −40%#0F0221
More saturated +25%#6200EF
Less saturated −25%#6929C6

Channel breakdown

R100
G11
B228
Red100 (39.2%)
Green11 (4.3%)
Blue228 (89.4%)
Hue264.61°
Saturation (HSL)90.79%
Lightness46.86%
Dominant channelBlue
Hex per channelR 64 · G 0B · B E4

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “640be4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.