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Recognised as Colour

#2400DD

  • #2400DD
  • Blue
  • Dark
  • Nearest: Medium blue

#2400DD is a blue with RGB values 36, 0, 221 and HSL 250°, 100%, 43%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2400DD#2400DD
HEX#2400DD
RGBrgb(36, 0, 221)
RGB (0–1)0.1412, 0, 0.8667
RGB percentages14.1%, 0%, 86.7%
HSLhsl(249.8, 100%, 43.3%)
HSV / HSBhsv(249.8, 100%, 86.7%)
CMYK83.7%, 100%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,359,517
CSS custom property--colour: #2400DD;

Brightness & contrast

Relative luminance0.05596WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.91:1
Contrast with white9.91:1WCAG normal text: AAA
Contrast with black2.12:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#DBFF22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004DE2no red cones; affects about 1% of men; ΔE 36.4 from the original
Deuteranopia#0038DAno green cones; the most common form, about 1% of men; ΔE 24.5 from the original
Tritanopia#005B81no blue cones; rare, and affects men and women equally; ΔE 104.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.91:1WCAG large text: AAA
Contrast with black, large text2.12:1WCAG large text: Fail

Named colours

Medium blue · ΔE 6.5Blue · ΔE 15.5Blue violet · ΔE 24.6Dark violet · ΔE 27.6Dark blue · ΔE 36.4Dark orchid · ΔE 38.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 6.5, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B9DD00
Analogous#004ADD, #9300DD
Triadic#DD2400, #00DD24
Split complementary#DD9300, #4ADD00
Tetradic#DD004A, #B9DD00, #00DD93

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8AAFF
Lighter +30%#8D77FF
Lighter +20%#6244FF
Lighter +10%#3811FF
Darker −10%#1C00AA
Darker −20%#130077
Darker −30%#0B0044
Darker −40%#030011
More saturated +25%#2400DD
Less saturated −25%#371CC1

Channel breakdown

R36
G0
B221
Red36 (14.1%)
Green0 (0%)
Blue221 (86.7%)
Hue249.77°
Saturation (HSL)100%
Lightness43.33%
Dominant channelBlue
Hex per channelR 24 · G 00 · B DD

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Every value on this page was computed from “2400dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.