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Recognised as Colour

#2E5BDB

  • #2E5BDB
  • Blue
  • Dark
  • Nearest: Royal blue

#2E5BDB is a blue with RGB values 46, 91, 219 and HSL 224°, 71%, 52%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2E5BDB#2E5BDB
HEX#2E5BDB
RGBrgb(46, 91, 219)
RGB (0–1)0.1804, 0.3569, 0.8588
RGB percentages18%, 35.7%, 85.9%
HSLhsl(224.4, 70.6%, 52%)
HSV / HSBhsv(224.4, 79%, 85.9%)
CMYK79%, 58.4%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,038,171
CSS custom property--colour: #2E5BDB;

Brightness & contrast

Relative luminance0.13177WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.78:1
Contrast with white5.78:1WCAG normal text: AA
Contrast with black3.64:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#D1A424

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006EDFno red cones; affects about 1% of men; ΔE 14.8 from the original
Deuteranopia#005ED9no green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#007B92no blue cones; rare, and affects men and women equally; ΔE 70.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.78:1WCAG large text: AAA
Contrast with black, large text3.64:1WCAG large text: AA

Named colours

Royal blue · ΔE 8Slate blue · ΔE 13.2Medium slateblue · ΔE 14.4Medium purple · ΔE 23.7Dodgerblue · ΔE 27.3Rebecca purple · ΔE 27.5
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.98, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DBAE2E
Analogous#2EB1DB, #582EDB
Triadic#DB2E5B, #5BDB2E
Split complementary#DB582E, #B1DB2E
Tetradic#DB2EB1, #DBAE2E, #2EDB58

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCE4F9
Lighter +30%#B1C1F1
Lighter +20%#859FEA
Lighter +10%#5A7DE2
Darker −10%#1F47B7
Darker −20%#18368B
Darker −30%#102560
Darker −40%#091434
More saturated +25%#0F4CFA
Less saturated −25%#4D6ABC

Channel breakdown

R46
G91
B219
Red46 (18%)
Green91 (35.7%)
Blue219 (85.9%)
Hue224.39°
Saturation (HSL)70.61%
Lightness51.96%
Dominant channelBlue
Hex per channelR 2E · G 5B · B DB

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Every value on this page was computed from “2e5bdb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.