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Recognised as Colour

#63AD9C

  • #63AD9C
  • Cyan
  • Dark
  • Nearest: Cadetblue

#63AD9C is a cyan with RGB values 99, 173, 156 and HSL 166°, 31%, 53%. 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

#63AD9C#63AD9C
HEX#63AD9C
RGBrgb(99, 173, 156)
RGB (0–1)0.3882, 0.6784, 0.6118
RGB percentages38.8%, 67.8%, 61.2%
HSLhsl(166.2, 31.1%, 53.3%)
HSV / HSBhsv(166.2, 42.8%, 67.8%)
CMYK42.8%, 0%, 9.8%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,532,508
CSS custom property--colour: #63AD9C;

Brightness & contrast

Relative luminance0.3494WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.99:1
Contrast with white2.63:1WCAG normal text: Fail
Contrast with black7.99:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#9C5263

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A8A59Bno red cones; affects about 1% of men; ΔE 26.9 from the original
Deuteranopia#9B9C9Dno green cones; the most common form, about 1% of men; ΔE 27.2 from the original
Tritanopia#48AFA8no blue cones; rare, and affects men and women equally; ΔE 8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.63:1WCAG large text: Fail
Contrast with black, large text7.99:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 12.6Light seagreen · ΔE 13Medium aquamarine · ΔE 16.4Dark cyan · ΔE 17.5Dark seagreen · ΔE 18Medium turquoise · ΔE 18
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 12.56, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD6374
Analogous#63AD77, #6399AD
Triadic#9C63AD, #AD9C63
Split complementary#AD6399, #AD7763
Tetradic#7763AD, #AD6374, #99AD63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9F3F1
Lighter +30%#C7E2DC
Lighter +20%#A6D0C6
Lighter +10%#84BFB1
Darker −10%#4C9181
Darker −20%#3B6F63
Darker −30%#294E46
Darker −40%#172D28
More saturated +25%#45CBAC
Less saturated −25%#818F8C

Channel breakdown

R99
G173
B156
Red99 (38.8%)
Green173 (67.8%)
Blue156 (61.2%)
Hue166.22°
Saturation (HSL)31.09%
Lightness53.33%
Dominant channelGreen
Hex per channelR 63 · G AD · B 9C

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Every value on this page was computed from “63ad9c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.