Nerdulator> put something in

Colour

#00319B

  • #00319B
  • Blue
  • Dark
  • Nearest: Midnight blue

#00319B is a blue with RGB values 0, 49, 155 and HSL 221°, 100%, 30%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00319B#00319B
HEX#00319B
RGBrgb(0, 49, 155)
RGB (0–1)0, 0.1922, 0.6078
RGB percentages0%, 19.2%, 60.8%
HSLhsl(221, 100%, 30.4%)
HSV / HSBhsv(221, 100%, 60.8%)
CMYK100%, 68.4%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,699
CSS custom property--colour: #00319B;

Brightness & contrast

Relative luminance0.04563WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.98:1
Contrast with white10.98:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#FFCE64

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00439Eno red cones; affects about 1% of men; ΔE 14 from the original
Deuteranopia#003599no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#004E62no blue cones; rare, and affects men and women equally; ΔE 61.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.98:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 14.8Rebecca purple · ΔE 19.6Dark slateblue · ΔE 20.1Slate blue · ΔE 20.7Navy · ΔE 21Indigo · ΔE 22.5
Nearest named CSS colourMidnight blue (#191970)ΔE 14.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B6A00
Analogous#007F9B, #1C009B
Triadic#9B0031, #319B00
Split complementary#9B1C00, #7F9B00
Tetradic#9B007F, #9B6A00, #009B1C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6898FF
Lighter +30%#3575FF
Lighter +20%#0252FF
Lighter +10%#0041CE
Darker −10%#002168
Darker −20%#001135
Darker −30%#000102
Darker −40%#000000
More saturated +25%#00319B
Less saturated −25%#133888

Channel breakdown

R0
G49
B155
Red0 (0%)
Green49 (19.2%)
Blue155 (60.8%)
Hue221.03°
Saturation (HSL)100%
Lightness30.39%
Dominant channelBlue
Hex per channelR 00 · G 31 · B 9B

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 “00319b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.