Nerdulator> put something in

Recognised as Colour

#4009B0

  • #4009B0
  • Violet
  • Dark
  • Nearest: Dark blue

#4009B0 is a violet with RGB values 64, 9, 176 and HSL 260°, 90%, 36%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#4009B0#4009B0
HEX#4009B0
RGBrgb(64, 9, 176)
RGB (0–1)0.251, 0.0353, 0.6902
RGB percentages25.1%, 3.5%, 69%
HSLhsl(259.8, 90.3%, 36.3%)
HSV / HSBhsv(259.8, 94.9%, 69%)
CMYK63.6%, 94.9%, 0%, 31%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,196,784
CSS custom property--colour: #4009B0;

Brightness & contrast

Relative luminance0.0442WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.15:1
Contrast with white11.15:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#BFF64F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0040B4no red cones; affects about 1% of men; ΔE 30.7 from the original
Deuteranopia#0036ADno green cones; the most common form, about 1% of men; ΔE 26.2 from the original
Tritanopia#004766no blue cones; rare, and affects men and women equally; ΔE 83.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.15:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark blue · ΔE 14.8Medium blue · ΔE 18.9Navy · ΔE 19.5Blue violet · ΔE 20Dark violet · ΔE 22.5Indigo · ΔE 22.8
Nearest named CSS colourDark blue (#00008B)ΔE 14.84, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#79B009
Analogous#0926B0, #9309B0
Triadic#B04009, #09B040
Split complementary#B09309, #26B009
Tetradic#B00926, #79B009, #09B093

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B08CF9
Lighter +30%#8F5BF7
Lighter +20%#6D2BF4
Lighter +10%#520BE1
Darker −10%#2E077F
Darker −20%#1D044F
Darker −30%#0B021E
Darker −40%#000000
More saturated +25%#3D00B9
Less saturated −25%#482099

Channel breakdown

R64
G9
B176
Red64 (25.1%)
Green9 (3.5%)
Blue176 (69%)
Hue259.76°
Saturation (HSL)90.27%
Lightness36.27%
Dominant channelBlue
Hex per channelR 40 · G 09 · B B0

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 “4009b0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.