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Colour

#1300BB

  • #1300BB
  • Blue
  • Dark
  • Nearest: Medium blue

#1300BB is a blue with RGB values 19, 0, 187 and HSL 246°, 100%, 37%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1300BB#1300BB
HEX#1300BB
RGBrgb(19, 0, 187)
RGB (0–1)0.0745, 0, 0.7333
RGB percentages7.5%, 0%, 73.3%
HSLhsl(246.1, 100%, 36.7%)
HSV / HSBhsv(246.1, 100%, 73.3%)
CMYK89.8%, 100%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,245,371
CSS custom property--colour: #1300BB;

Brightness & contrast

Relative luminance0.03726WCAG 2.x, 0 is black and 1 is white
Perceived brightness64 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.03:1
Contrast with white12.03:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#ECFF44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003FBFno red cones; affects about 1% of men; ΔE 31.9 from the original
Deuteranopia#002CB8no green cones; the most common form, about 1% of men; ΔE 20.8 from the original
Tritanopia#004C6Cno blue cones; rare, and affects men and women equally; ΔE 93.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.03:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Medium blue · ΔE 8.4Dark blue · ΔE 21.7Blue violet · ΔE 22.9Dark violet · ΔE 25.8Navy · ΔE 27Blue · ΔE 30
Nearest named CSS colourMedium blue (#0000CD)ΔE 8.42, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A8BB00
Analogous#004ABB, #7100BB
Triadic#BB1300, #00BB13
Split complementary#BB7100, #4ABB00
Tetradic#BB004A, #A8BB00, #00BB71

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9488FF
Lighter +30%#6655FF
Lighter +20%#3822FF
Lighter +10%#1800EE
Darker −10%#0E0088
Darker −20%#090055
Darker −30%#030022
Darker −40%#000000
More saturated +25%#1300BB
Less saturated −25%#2617A4

Channel breakdown

R19
G0
B187
Red19 (7.5%)
Green0 (0%)
Blue187 (73.3%)
Hue246.1°
Saturation (HSL)100%
Lightness36.67%
Dominant channelBlue
Hex per channelR 13 · G 00 · B BB

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Every value on this page was computed from “1300bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.