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Recognised as Colour

#63BDF6

  • #63BDF6
  • Blue
  • Dark
  • Nearest: Deep skyblue

#63BDF6 is a blue with RGB values 99, 189, 246 and HSL 203°, 89%, 68%. It is a dark colour, so black text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#63BDF6#63BDF6
HEX#63BDF6
RGBrgb(99, 189, 246)
RGB (0–1)0.3882, 0.7412, 0.9647
RGB percentages38.8%, 74.1%, 96.5%
HSLhsl(203.3, 89.1%, 67.6%)
HSV / HSBhsv(203.3, 59.8%, 96.5%)
CMYK59.8%, 23.2%, 0%, 3.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,536,694
CSS custom property--colour: #63BDF6;

Brightness & contrast

Relative luminance0.45702WCAG 2.x, 0 is black and 1 is white
Perceived brightness175.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.14:1
Contrast with white2.07:1WCAG normal text: Fail
Contrast with black10.14:1WCAG normal text: AAA
Greyscale equivalent#AEAEAE
Inverted#9C4209

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A3BCF9no red cones; affects about 1% of men; ΔE 16.9 from the original
Deuteranopia#8FAEF5no green cones; the most common form, about 1% of men; ΔE 17.9 from the original
Tritanopia#00CBD0no blue cones; rare, and affects men and women equally; ΔE 36 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.07:1WCAG large text: Fail
Contrast with black, large text10.14:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 9.5Light skyblue · ΔE 10.1Sky blue · ΔE 16.7Steel blue · ΔE 22.2Light steelblue · ΔE 23.6Cornflower blue · ΔE 26.3
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 9.51, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F69C63
Analogous#63F6E5, #6374F6
Triadic#F663BD, #BDF663
Split complementary#F66374, #F6E663
Tetradic#E563F6, #F69C63, #74F663

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F4FAFE
Lighter +20%#C3E6FC
Lighter +10%#93D1F9
Darker −10%#33A9F3
Darker −20%#0D92E6
Darker −30%#0A73B6
Darker −40%#085585
More saturated +25%#5ABFFF
Less saturated −25%#78B8E1

Channel breakdown

R99
G189
B246
Red99 (38.8%)
Green189 (74.1%)
Blue246 (96.5%)
Hue203.27°
Saturation (HSL)89.09%
Lightness67.65%
Dominant channelBlue
Hex per channelR 63 · G BD · B F6

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Every value on this page was computed from “63bdf6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.