Nerdulator> put something in

Colour

#003791

  • #003791
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003791 is a blue with RGB values 0, 55, 145 and HSL 217°, 100%, 28%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003791#003791
HEX#003791
RGBrgb(0, 55, 145)
RGB (0–1)0, 0.2157, 0.5686
RGB percentages0%, 21.6%, 56.9%
HSLhsl(217.2, 100%, 28.4%)
HSV / HSBhsv(217.2, 100%, 56.9%)
CMYK100%, 62.1%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,225
CSS custom property--colour: #003791;

Brightness & contrast

Relative luminance0.04777WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.74:1
Contrast with white10.74:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FFC86E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004494no red cones; affects about 1% of men; ΔE 10 from the original
Deuteranopia#00388Fno green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#004F5Eno blue cones; rare, and affects men and women equally; ΔE 54.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.74:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.9Midnight blue · ΔE 14.2Rebecca purple · ΔE 22.2Slate blue · ΔE 23.7Royal blue · ΔE 24.9Indigo · ΔE 29.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#915A00
Analogous#007F91, #120091
Triadic#910037, #379100
Split complementary#911100, #809100
Tetradic#91007F, #915A00, #009111

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5E9BFF
Lighter +30%#2B7BFF
Lighter +20%#005EF7
Lighter +10%#004AC4
Darker −10%#00245E
Darker −20%#00102B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003791
Less saturated −25%#123B7F

Channel breakdown

R0
G55
B145
Red0 (0%)
Green55 (21.6%)
Blue145 (56.9%)
Hue217.24°
Saturation (HSL)100%
Lightness28.43%
Dominant channelBlue
Hex per channelR 00 · G 37 · B 91

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 “hex 003791” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.