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Recognised as Colour

#63E4E1

  • #63E4E1
  • Cyan
  • Light
  • Nearest: Medium turquoise

#63E4E1 is a cyan with RGB values 99, 228, 225 and HSL 179°, 70%, 64%. It is a light colour, so black text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Medium turquoise.

Colour values

#63E4E1#63E4E1
HEX#63E4E1
RGBrgb(99, 228, 225)
RGB (0–1)0.3882, 0.8941, 0.8824
RGB percentages38.8%, 89.4%, 88.2%
HSLhsl(178.6, 70.5%, 64.1%)
HSV / HSBhsv(178.6, 56.6%, 89.4%)
CMYK56.6%, 0%, 1.3%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,546,657
CSS custom property--colour: #63E4E1;

Brightness & contrast

Relative luminance0.63576WCAG 2.x, 0 is black and 1 is white
Perceived brightness198 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.72:1
Contrast with white1.53:1WCAG normal text: Fail
Contrast with black13.72:1WCAG normal text: AAA
Greyscale equivalent#C8C8C8
Inverted#9C1B1E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D7DAE1no red cones; affects about 1% of men; ΔE 36.9 from the original
Deuteranopia#C2CAE2no green cones; the most common form, about 1% of men; ΔE 38.3 from the original
Tritanopia#00EAE3no blue cones; rare, and affects men and women equally; ΔE 11.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.53:1WCAG large text: Fail
Contrast with black, large text13.72:1WCAG large text: AAA

Named colours

Medium turquoise · ΔE 7.1Turquoise · ΔE 9.9Dark turquoise · ΔE 10.3Aqua · ΔE 15Cyan · ΔE 15Pale turquoise · ΔE 17.8
Nearest named CSS colourMedium turquoise (#48D1CC)ΔE 7.05, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E46366
Analogous#63E4A0, #63A7E4
Triadic#E163E4, #E4E163
Split complementary#E463A7, #E4A063
Tetradic#A163E4, #E46366, #A7E463

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E5FBFA
Lighter +20%#BAF3F2
Lighter +10%#8EECE9
Darker −10%#38DCD9
Darker −20%#21C0BC
Darker −30%#1A9491
Darker −40%#126967
More saturated +25%#4CFBF7
Less saturated −25%#7ACDCB

Channel breakdown

R99
G228
B225
Red99 (38.8%)
Green228 (89.4%)
Blue225 (88.2%)
Hue178.6°
Saturation (HSL)70.49%
Lightness64.12%
Dominant channelGreen
Hex per channelR 63 · G E4 · B E1

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Every value on this page was computed from “63e4e1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.