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Recognised as Colour

#2144DD

  • #2144DD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#2144DD is a blue with RGB values 33, 68, 221 and HSL 229°, 74%, 50%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Medium slateblue.

Colour values

#2144DD#2144DD
HEX#2144DD
RGBrgb(33, 68, 221)
RGB (0–1)0.1294, 0.2667, 0.8667
RGB percentages12.9%, 26.7%, 86.7%
HSLhsl(228.8, 74%, 49.8%)
HSV / HSBhsv(228.8, 85.1%, 86.7%)
CMYK85.1%, 69.2%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,180,317
CSS custom property--colour: #2144DD;

Brightness & contrast

Relative luminance0.09678WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.15:1
Contrast with white7.15:1WCAG normal text: AAA
Contrast with black2.94:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#DEBB22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0061E2no red cones; affects about 1% of men; ΔE 21 from the original
Deuteranopia#004FDAno green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#006F8Bno blue cones; rare, and affects men and women equally; ΔE 84.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.15:1WCAG large text: AAA
Contrast with black, large text2.94:1WCAG large text: Fail

Named colours

Medium slateblue · ΔE 21.5Slate blue · ΔE 25.6Blue violet · ΔE 25.9Dark blue · ΔE 25.9Royal blue · ΔE 26.3Medium blue · ΔE 27.7
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 21.46, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDBA21
Analogous#21A2DD, #5C21DD
Triadic#DD2144, #44DD21
Split complementary#DD5C21, #A2DD21
Tetradic#DD21A2, #DDBA21, #21DD5C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2D9F8
Lighter +30%#A5B4F2
Lighter +20%#798EEB
Lighter +10%#4D69E4
Darker −10%#1A36B1
Darker −20%#142984
Darker −30%#0D1B58
Darker −40%#060D2C
More saturated +25%#0130FD
Less saturated −25%#4158BD

Channel breakdown

R33
G68
B221
Red33 (12.9%)
Green68 (26.7%)
Blue221 (86.7%)
Hue228.83°
Saturation (HSL)74.02%
Lightness49.8%
Dominant channelBlue
Hex per channelR 21 · G 44 · B DD

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Every value on this page was computed from “2144dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.