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Recognised as Colour

#63B6FF

  • #63B6FF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#63B6FF is a blue with RGB values 99, 182, 255 and HSL 208°, 100%, 69%. It is a dark colour, so black text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#63B6FF#63B6FF
HEX#63B6FF
RGBrgb(99, 182, 255)
RGB (0–1)0.3882, 0.7137, 1
RGB percentages38.8%, 71.4%, 100%
HSLhsl(208.1, 100%, 69.4%)
HSV / HSBhsv(208.1, 61.2%, 100%)
CMYK61.2%, 28.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,534,911
CSS custom property--colour: #63B6FF;

Brightness & contrast

Relative luminance0.43329WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.67:1
Contrast with white2.17:1WCAG normal text: Fail
Contrast with black9.67:1WCAG normal text: AAA
Greyscale equivalent#AAAAAA
Inverted#9C4900

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#96B8FFno red cones; affects about 1% of men; ΔE 11.5 from the original
Deuteranopia#81A9FEno green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#00C7D0no 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 text2.17:1WCAG large text: Fail
Contrast with black, large text9.67:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 13.8Cornflower blue · ΔE 17.5Light skyblue · ΔE 18.4Steel blue · ΔE 22.4Sky blue · ΔE 26Dodgerblue · ΔE 27.1
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 13.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFAC63
Analogous#63FFFA, #6368FF
Triadic#FF63B6, #B6FF63
Split complementary#FF6368, #FFFA63
Tetradic#FA63FF, #FFAC63, #68FF63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FCFEFF
Lighter +20%#C9E6FF
Lighter +10%#96CEFF
Darker −10%#309EFF
Darker −20%#0086FC
Darker −30%#006BC9
Darker −40%#005096
More saturated +25%#63B6FF
Less saturated −25%#76B5EC

Channel breakdown

R99
G182
B255
Red99 (38.8%)
Green182 (71.4%)
Blue255 (100%)
Hue208.08°
Saturation (HSL)100%
Lightness69.41%
Dominant channelBlue
Hex per channelR 63 · G B6 · B FF

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Every value on this page was computed from “63b6ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.