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Recognised as Colour

#899FD8

  • #899FD8
  • Blue
  • Dark
  • Nearest: Steel blue

#899FD8 is a blue with RGB values 137, 159, 216 and HSL 223°, 50%, 69%. It is a dark colour, so black text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#899FD8#899FD8
HEX#899FD8
RGBrgb(137, 159, 216)
RGB (0–1)0.5373, 0.6235, 0.8471
RGB percentages53.7%, 62.4%, 84.7%
HSLhsl(223.3, 50.3%, 69.2%)
HSV / HSBhsv(223.3, 36.6%, 84.7%)
CMYK36.6%, 26.4%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,019,352
CSS custom property--colour: #899FD8;

Brightness & contrast

Relative luminance0.35073WCAG 2.x, 0 is black and 1 is white
Perceived brightness160.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.01:1
Contrast with white2.62:1WCAG normal text: Fail
Contrast with black8.01:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#766027

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8CA4DBno red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#859DD7no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#71AAB3no blue cones; rare, and affects men and women equally; ΔE 30.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.62:1WCAG large text: Fail
Contrast with black, large text8.01:1WCAG large text: AAA

Named colours

Steel blue · ΔE 16.8Cornflower blue · ΔE 18.5Light steelblue · ΔE 21.9Light skyblue · ΔE 22.1Light slate grey · ΔE 24.1Slate grey · ΔE 26
Nearest named CSS colourSteel blue (#4682B4)ΔE 16.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8C289
Analogous#89C7D8, #9A89D8
Triadic#D8899F, #9FD889
Split complementary#D89A89, #C7D889
Tetradic#D889C7, #D8C289, #89D89B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FCFDFE
Lighter +20%#D6DDF1
Lighter +10%#AFBEE5
Darker −10%#6380CB
Darker −20%#3E62BD
Darker −30%#324E96
Darker −40%#253A70
More saturated +25%#7596EC
Less saturated −25%#9DA8C4

Channel breakdown

R137
G159
B216
Red137 (53.7%)
Green159 (62.4%)
Blue216 (84.7%)
Hue223.29°
Saturation (HSL)50.32%
Lightness69.22%
Dominant channelBlue
Hex per channelR 89 · G 9F · B D8

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Every value on this page was computed from “899fd8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.