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Recognised as Colour

#2150DB

  • #2150DB
  • Blue
  • Dark
  • Nearest: Medium slateblue

#2150DB is a blue with RGB values 33, 80, 219 and HSL 225°, 74%, 49%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#2150DB#2150DB
HEX#2150DB
RGBrgb(33, 80, 219)
RGB (0–1)0.1294, 0.3137, 0.8588
RGB percentages12.9%, 31.4%, 85.9%
HSLhsl(224.8, 73.8%, 49.4%)
HSV / HSBhsv(224.8, 84.9%, 85.9%)
CMYK84.9%, 63.5%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,183,387
CSS custom property--colour: #2150DB;

Brightness & contrast

Relative luminance0.11175WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.49:1
Contrast with white6.49:1WCAG normal text: AA
Contrast with black3.24:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#DEAF24

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067DFno red cones; affects about 1% of men; ΔE 17.3 from the original
Deuteranopia#0055D8no green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#00758Eno blue cones; rare, and affects men and women equally; ΔE 77 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.49:1WCAG large text: AAA
Contrast with black, large text3.24:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 16.1Royal blue · ΔE 16.4Slate blue · ΔE 18Medium purple · ΔE 29Dark blue · ΔE 29.2Rebecca purple · ΔE 29.2
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 16.08, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DBAC21
Analogous#21ADDB, #4F21DB
Triadic#DB2150, #50DB21
Split complementary#DB4F21, #ADDB21
Tetradic#DB21AD, #DBAC21, #21DB4F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D0DAF8
Lighter +30%#A4B7F1
Lighter +20%#7795EB
Lighter +10%#4B72E4
Darker −10%#1A40AF
Darker −20%#143082
Darker −30%#0D1F56
Darker −40%#060F2A
More saturated +25%#0140FB
Less saturated −25%#4160BB

Channel breakdown

R33
G80
B219
Red33 (12.9%)
Green80 (31.4%)
Blue219 (85.9%)
Hue224.84°
Saturation (HSL)73.81%
Lightness49.41%
Dominant channelBlue
Hex per channelR 21 · G 50 · B DB

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Every value on this page was computed from “2150db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.