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Colour

#63B0FF

  • #63B0FF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#63B0FF is a blue with RGB values 99, 176, 255 and HSL 210°, 100%, 69%. It is a dark colour, so black text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#63B0FF#63B0FF
HEX#63B0FF
RGBrgb(99, 176, 255)
RGB (0–1)0.3882, 0.6902, 1
RGB percentages38.8%, 69%, 100%
HSLhsl(210.4, 100%, 69.4%)
HSV / HSBhsv(210.4, 61.2%, 100%)
CMYK61.2%, 31%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,533,375
CSS custom property--colour: #63B0FF;

Brightness & contrast

Relative luminance0.40923WCAG 2.x, 0 is black and 1 is white
Perceived brightness168.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.18:1
Contrast with white2.29:1WCAG normal text: Fail
Contrast with black9.18:1WCAG normal text: AAA
Greyscale equivalent#A5A5A5
Inverted#9C4F00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8EB4FFno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#79A5FDno green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#00C2CCno blue cones; rare, and affects men and women equally; ΔE 46.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.29:1WCAG large text: Fail
Contrast with black, large text9.18:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13.2Deep skyblue · ΔE 17.6Light skyblue · ΔE 22.6Steel blue · ΔE 22.8Dodgerblue · ΔE 22.8Sky blue · ΔE 30.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.22, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFB263
Analogous#63FEFF, #6463FF
Triadic#FF63B0, #B0FF63
Split complementary#FF6463, #FEFF63
Tetradic#FF63FE, #FFB263, #63FF64

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FCFDFF
Lighter +20%#C9E4FF
Lighter +10%#96CAFF
Darker −10%#3096FF
Darker −20%#007CFC
Darker −30%#0063C9
Darker −40%#004A96
More saturated +25%#63B0FF
Less saturated −25%#76B0EC

Channel breakdown

R99
G176
B255
Red99 (38.8%)
Green176 (69%)
Blue255 (100%)
Hue210.38°
Saturation (HSL)100%
Lightness69.41%
Dominant channelBlue
Hex per channelR 63 · G B0 · B FF

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Every value on this page was computed from “63b0ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.