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Recognised as Colour

#4688DD

  • #4688DD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4688DD is a blue with RGB values 70, 136, 221 and HSL 214°, 69%, 57%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4688DD#4688DD
HEX#4688DD
RGBrgb(70, 136, 221)
RGB (0–1)0.2745, 0.5333, 0.8667
RGB percentages27.5%, 53.3%, 86.7%
HSLhsl(213.8, 68.9%, 57.1%)
HSV / HSBhsv(213.8, 68.3%, 86.7%)
CMYK68.3%, 38.5%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,622,557
CSS custom property--colour: #4688DD;

Brightness & contrast

Relative luminance0.24131WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.83:1
Contrast with white3.6:1WCAG normal text: Fail
Contrast with black5.83:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#B97722

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#618EE0no red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#4B80DBno green cones; the most common form, about 1% of men; ΔE 5.8 from the original
Tritanopia#009CA8no blue cones; rare, and affects men and women equally; ΔE 49.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.6:1WCAG large text: AA
Contrast with black, large text5.83:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 6.4Dodgerblue · ΔE 14.6Steel blue · ΔE 20.6Royal blue · ΔE 26.7Deep skyblue · ΔE 29.9Medium purple · ΔE 30.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 6.43, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9B46
Analogous#46D3DD, #5046DD
Triadic#DD4688, #88DD46
Split complementary#DD5046, #D3DD46
Tetradic#DD46D3, #DD9B46, #46DD4F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F2F7FD
Lighter +30%#C7DBF5
Lighter +20%#9CBFED
Lighter +10%#71A4E5
Darker −10%#256ECB
Darker −20%#1D56A0
Darker −30%#153F75
Darker −40%#0E2849
More saturated +25%#2B85F8
Less saturated −25%#618BC2

Channel breakdown

R70
G136
B221
Red70 (27.5%)
Green136 (53.3%)
Blue221 (86.7%)
Hue213.77°
Saturation (HSL)68.95%
Lightness57.06%
Dominant channelBlue
Hex per channelR 46 · G 88 · B DD

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Every value on this page was computed from “4688dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.