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Colour

#63C4FF

  • #63C4FF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#63C4FF is a blue with RGB values 99, 196, 255 and HSL 203°, 100%, 69%. It is a dark colour, so black text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#63C4FF#63C4FF
HEX#63C4FF
RGBrgb(99, 196, 255)
RGB (0–1)0.3882, 0.7686, 1
RGB percentages38.8%, 76.9%, 100%
HSLhsl(202.7, 100%, 69.4%)
HSV / HSBhsv(202.7, 61.2%, 100%)
CMYK61.2%, 23.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,538,495
CSS custom property--colour: #63C4FF;

Brightness & contrast

Relative luminance0.49353WCAG 2.x, 0 is black and 1 is white
Perceived brightness181.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.87:1
Contrast with white1.93:1WCAG normal text: Fail
Contrast with black10.87:1WCAG normal text: AAA
Greyscale equivalent#B4B4B4
Inverted#9C3B00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A9C3FFno red cones; affects about 1% of men; ΔE 17.6 from the original
Deuteranopia#93B3FEno green cones; the most common form, about 1% of men; ΔE 19.7 from the original
Tritanopia#00D3D8no blue cones; rare, and affects men and women equally; ΔE 36.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.93:1WCAG large text: Fail
Contrast with black, large text10.87:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 8.5Light skyblue · ΔE 9.9Sky blue · ΔE 17Light steelblue · ΔE 24.7Steel blue · ΔE 24.9Light blue · ΔE 27.3
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 8.52, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9E63
Analogous#63FFEC, #6376FF
Triadic#FF63C4, #C4FF63
Split complementary#FF6376, #FFEC63
Tetradic#EC63FF, #FF9E63, #76FF63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FCFEFF
Lighter +20%#C9EBFF
Lighter +10%#96D7FF
Darker −10%#30B1FF
Darker −20%#009DFC
Darker −30%#007DC9
Darker −40%#005D96
More saturated +25%#63C4FF
Less saturated −25%#76BFEC

Channel breakdown

R99
G196
B255
Red99 (38.8%)
Green196 (76.9%)
Blue255 (100%)
Hue202.69°
Saturation (HSL)100%
Lightness69.41%
Dominant channelBlue
Hex per channelR 63 · G C4 · B FF

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Every value on this page was computed from “63c4ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.