Nerdulator> put something in

Colour

#40509A

  • #40509A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#40509A is a blue with RGB values 64, 80, 154 and HSL 229°, 41%, 43%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#40509A#40509A
HEX#40509A
RGBrgb(64, 80, 154)
RGB (0–1)0.251, 0.3137, 0.6039
RGB percentages25.1%, 31.4%, 60.4%
HSLhsl(229.3, 41.3%, 42.7%)
HSV / HSBhsv(229.3, 58.4%, 60.4%)
CMYK58.4%, 48.1%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,214,938
CSS custom property--colour: #40509A;

Brightness & contrast

Relative luminance0.0916WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.42:1
Contrast with white7.42:1WCAG normal text: AAA
Contrast with black2.83:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#BFAF65

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2D599Dno red cones; affects about 1% of men; ΔE 8.6 from the original
Deuteranopia#205298no green cones; the most common form, about 1% of men; ΔE 7.5 from the original
Tritanopia#01616Dno blue cones; rare, and affects men and women equally; ΔE 46.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.42:1WCAG large text: AAA
Contrast with black, large text2.83:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.7Slate blue · ΔE 26.1Midnight blue · ΔE 26.2Rebecca purple · ΔE 26.6Royal blue · ΔE 27.2Cornflower blue · ΔE 27.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9A8A40
Analogous#407D9A, #5D409A
Triadic#9A4050, #509A40
Split complementary#9A5D40, #7D9A40
Tetradic#9A407D, #9A8A40, #409A5D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1C7E5
Lighter +30%#9DA7D6
Lighter +20%#7987C7
Lighter +10%#5566B8
Darker −10%#313D76
Darker −20%#222B52
Darker −30%#13182E
Darker −40%#04050A
More saturated +25%#253EB5
Less saturated −25%#5B627F

Channel breakdown

R64
G80
B154
Red64 (25.1%)
Green80 (31.4%)
Blue154 (60.4%)
Hue229.33°
Saturation (HSL)41.28%
Lightness42.75%
Dominant channelBlue
Hex per channelR 40 · G 50 · B 9A

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 “40509a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.