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Recognised as Colour

#4284CC

  • #4284CC
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4284CC is a blue with RGB values 66, 132, 204 and HSL 211°, 58%, 53%. 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

#4284CC#4284CC
HEX#4284CC
RGBrgb(66, 132, 204)
RGB (0–1)0.2588, 0.5176, 0.8
RGB percentages25.9%, 51.8%, 80%
HSLhsl(211.3, 57.5%, 52.9%)
HSV / HSBhsv(211.3, 67.6%, 80%)
CMYK67.6%, 35.3%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,359,372
CSS custom property--colour: #4284CC;

Brightness & contrast

Relative luminance0.2202WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.4:1
Contrast with white3.89:1WCAG normal text: Fail
Contrast with black5.4:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#BD7B33

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6488CFno red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#507BCBno green cones; the most common form, about 1% of men; ΔE 8.2 from the original
Tritanopia#00959Eno blue cones; rare, and affects men and women equally; ΔE 43.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.89:1WCAG large text: AA
Contrast with black, large text5.4:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.1Steel blue · ΔE 13Dodgerblue · ΔE 22.1Deep skyblue · ΔE 27.2Light skyblue · ΔE 32.4Light slate grey · ΔE 32.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CC8A42
Analogous#42C9CC, #4542CC
Triadic#CC4284, #84CC42
Split complementary#CC4542, #C9CC42
Tetradic#CC42C9, #CC8A42, #42CC45

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E3EDF7
Lighter +30%#BAD2ED
Lighter +20%#92B8E2
Lighter +10%#6A9ED7
Darker −10%#2F6BAC
Darker −20%#245284
Darker −30%#19395C
Darker −40%#0E2034
More saturated +25%#2483EA
Less saturated −25%#6085AE

Channel breakdown

R66
G132
B204
Red66 (25.9%)
Green132 (51.8%)
Blue204 (80%)
Hue211.3°
Saturation (HSL)57.5%
Lightness52.94%
Dominant channelBlue
Hex per channelR 42 · G 84 · B CC

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Every value on this page was computed from “4284cc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.