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Recognised as Colour

#4689DD

  • #4689DD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4689DD is a blue with RGB values 70, 137, 221 and HSL 213°, 69%, 57%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4689DD#4689DD
HEX#4689DD
RGBrgb(70, 137, 221)
RGB (0–1)0.2745, 0.5373, 0.8667
RGB percentages27.5%, 53.7%, 86.7%
HSLhsl(213.4, 68.9%, 57.1%)
HSV / HSBhsv(213.4, 68.3%, 86.7%)
CMYK68.3%, 38%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,622,813
CSS custom property--colour: #4689DD;

Brightness & contrast

Relative luminance0.24414WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.88:1
Contrast with white3.57:1WCAG normal text: Fail
Contrast with black5.88:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#B97622

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#638FE0no red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#4C81DBno green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#009CA8no blue cones; rare, and affects men and women equally; ΔE 48.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.57:1WCAG large text: AA
Contrast with black, large text5.88:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 6.5Dodgerblue · ΔE 15.2Steel blue · ΔE 20Royal blue · ΔE 27.5Deep skyblue · ΔE 29.2Medium purple · ΔE 31.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 6.48, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9A46
Analogous#46D5DD, #4E46DD
Triadic#DD4689, #89DD46
Split complementary#DD4F46, #D4DD46
Tetradic#DD46D5, #DD9A46, #46DD4F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F2F7FD
Lighter +30%#C7DBF5
Lighter +20%#9CC0ED
Lighter +10%#71A4E5
Darker −10%#256FCB
Darker −20%#1D57A0
Darker −30%#154075
Darker −40%#0E2849
More saturated +25%#2B86F8
Less saturated −25%#618CC2

Channel breakdown

R70
G137
B221
Red70 (27.5%)
Green137 (53.7%)
Blue221 (86.7%)
Hue213.38°
Saturation (HSL)68.95%
Lightness57.06%
Dominant channelBlue
Hex per channelR 46 · G 89 · B DD

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Every value on this page was computed from “4689dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.