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Recognised as Colour

#2B28D9

  • #2B28D9
  • Blue
  • Dark
  • Nearest: Medium blue

#2B28D9 is a blue with RGB values 43, 40, 217 and HSL 241°, 70%, 50%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2B28D9#2B28D9
HEX#2B28D9
RGBrgb(43, 40, 217)
RGB (0–1)0.1686, 0.1569, 0.851
RGB percentages16.9%, 15.7%, 85.1%
HSLhsl(241, 70%, 50.4%)
HSV / HSBhsv(241, 81.6%, 85.1%)
CMYK80.2%, 81.6%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,828,505
CSS custom property--colour: #2B28D9;

Brightness & contrast

Relative luminance0.07041WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.72:1
Contrast with white8.72:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#D4D726

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054DEno red cones; affects about 1% of men; ΔE 29 from the original
Deuteranopia#0042D6no green cones; the most common form, about 1% of men; ΔE 18.8 from the original
Tritanopia#006183no blue cones; rare, and affects men and women equally; ΔE 93.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.72:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Medium blue · ΔE 11.4Blue violet · ΔE 19.1Dark violet · ΔE 24.9Dark blue · ΔE 26.5Blue · ΔE 28.9Dark orchid · ΔE 29.7
Nearest named CSS colourMedium blue (#0000CD)ΔE 11.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D6D928
Analogous#287ED9, #8328D9
Triadic#D92B28, #28D92B
Split complementary#D98328, #7ED928
Tetradic#D9287E, #D6D928, #28D983

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6D5F8
Lighter +30%#ABAAF0
Lighter +20%#807FE8
Lighter +10%#5653E1
Darker −10%#211FAF
Darker −20%#191784
Darker −30%#111058
Darker −40%#09082D
More saturated +25%#0C08F9
Less saturated −25%#4A48B9

Channel breakdown

R43
G40
B217
Red43 (16.9%)
Green40 (15.7%)
Blue217 (85.1%)
Hue241.02°
Saturation (HSL)69.96%
Lightness50.39%
Dominant channelBlue
Hex per channelR 2B · G 28 · B D9

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Every value on this page was computed from “2b28d9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.