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Recognised as Colour

#4481DD

  • #4481DD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4481DD is a blue with RGB values 68, 129, 221 and HSL 216°, 69%, 57%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4481DD#4481DD
HEX#4481DD
RGBrgb(68, 129, 221)
RGB (0–1)0.2667, 0.5059, 0.8667
RGB percentages26.7%, 50.6%, 86.7%
HSLhsl(216.1, 69.2%, 56.7%)
HSV / HSBhsv(216.1, 69.2%, 86.7%)
CMYK69.2%, 41.6%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,489,693
CSS custom property--colour: #4481DD;

Brightness & contrast

Relative luminance0.2215WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.43:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.43:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#BB7E22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5589E1no red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#3C7BDBno green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#0096A4no blue cones; rare, and affects men and women equally; ΔE 52.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.43:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.5Dodgerblue · ΔE 11.8Royal blue · ΔE 21.2Steel blue · ΔE 25.2Medium purple · ΔE 26.6Slate blue · ΔE 27.6
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.55, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDA044
Analogous#44CDDD, #5444DD
Triadic#DD4481, #81DD44
Split complementary#DD5444, #CDDD44
Tetradic#DD44CD, #DDA044, #44DD54

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1F5FC
Lighter +30%#C5D8F5
Lighter +20%#9ABBED
Lighter +10%#6F9EE5
Darker −10%#2566C9
Darker −20%#1D509E
Darker −30%#153A73
Darker −40%#0D2548
More saturated +25%#287BF9
Less saturated −25%#6087C1

Channel breakdown

R68
G129
B221
Red68 (26.7%)
Green129 (50.6%)
Blue221 (86.7%)
Hue216.08°
Saturation (HSL)69.23%
Lightness56.67%
Dominant channelBlue
Hex per channelR 44 · G 81 · B DD

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Every value on this page was computed from “4481dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.