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Recognised as Colour

#2300BB

  • #2300BB
  • Blue
  • Dark
  • Nearest: Medium blue

#2300BB is a blue with RGB values 35, 0, 187 and HSL 251°, 100%, 37%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2300BB#2300BB
HEX#2300BB
RGBrgb(35, 0, 187)
RGB (0–1)0.1373, 0, 0.7333
RGB percentages13.7%, 0%, 73.3%
HSLhsl(251.2, 100%, 36.7%)
HSV / HSBhsv(251.2, 100%, 73.3%)
CMYK81.3%, 100%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,293,947
CSS custom property--colour: #2300BB;

Brightness & contrast

Relative luminance0.03945WCAG 2.x, 0 is black and 1 is white
Perceived brightness66 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.74:1
Contrast with white11.74:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#DCFF44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0040BFno red cones; affects about 1% of men; ΔE 32.2 from the original
Deuteranopia#002FB8no green cones; the most common form, about 1% of men; ΔE 22.4 from the original
Tritanopia#004C6Cno blue cones; rare, and affects men and women equally; ΔE 92.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.74:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail

Named colours

Medium blue · ΔE 9.2Dark blue · ΔE 21.3Blue violet · ΔE 21.6Dark violet · ΔE 24.5Navy · ΔE 26.5Blue · ΔE 30.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 9.22, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#98BB00
Analogous#003ABB, #8100BB
Triadic#BB2300, #00BB23
Split complementary#BB8100, #3ABB00
Tetradic#BB003A, #98BB00, #00BB81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9E88FF
Lighter +30%#7555FF
Lighter +20%#4B22FF
Lighter +10%#2D00EE
Darker −10%#190088
Darker −20%#100055
Darker −30%#060022
Darker −40%#000000
More saturated +25%#2300BB
Less saturated −25%#3217A4

Channel breakdown

R35
G0
B187
Red35 (13.7%)
Green0 (0%)
Blue187 (73.3%)
Hue251.23°
Saturation (HSL)100%
Lightness36.67%
Dominant channelBlue
Hex per channelR 23 · G 00 · B BB

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Every value on this page was computed from “2300bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.