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Recognised as Colour

#63AABC

  • #63AABC
  • Cyan
  • Dark
  • Nearest: Cadetblue

#63AABC is a cyan with RGB values 99, 170, 188 and HSL 192°, 40%, 56%. It is a dark colour, so black text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.

Colour values

#63AABC#63AABC
HEX#63AABC
RGBrgb(99, 170, 188)
RGB (0–1)0.3882, 0.6667, 0.7373
RGB percentages38.8%, 66.7%, 73.7%
HSLhsl(192.1, 39.9%, 56.3%)
HSV / HSBhsv(192.1, 47.3%, 73.7%)
CMYK47.3%, 9.6%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,531,772
CSS custom property--colour: #63AABC;

Brightness & contrast

Relative luminance0.35033WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.01:1
Contrast with white2.62:1WCAG normal text: Fail
Contrast with black8.01:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#9C5543

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9DA6BDno red cones; affects about 1% of men; ΔE 19.5 from the original
Deuteranopia#909BBCno green cones; the most common form, about 1% of men; ΔE 21 from the original
Tritanopia#35B1AFno blue cones; rare, and affects men and women equally; ΔE 17.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.62:1WCAG large text: Fail
Contrast with black, large text8.01:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 10.1Sky blue · ΔE 14.6Light slate grey · ΔE 18.8Light blue · ΔE 19.8Light skyblue · ΔE 19.8Dark cyan · ΔE 20.2
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 10.14, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC7563
Analogous#63BCA2, #637DBC
Triadic#BC63AA, #AABC63
Split complementary#BC637D, #BCA263
Tetradic#A263BC, #BC7563, #7EBC63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F2F8F9
Lighter +30%#CEE4EA
Lighter +20%#AAD1DB
Lighter +10%#87BDCB
Darker −10%#4792A5
Darker −20%#387281
Darker −30%#28535E
Darker −40%#19333A
More saturated +25%#47BBD8
Less saturated −25%#7F99A0

Channel breakdown

R99
G170
B188
Red99 (38.8%)
Green170 (66.7%)
Blue188 (73.7%)
Hue192.13°
Saturation (HSL)39.91%
Lightness56.27%
Dominant channelBlue
Hex per channelR 63 · G AA · B BC

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