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Recognised as Colour

#15ADAA

  • #15ADAA
  • Cyan
  • Dark
  • Nearest: Light seagreen

#15ADAA is a cyan with RGB values 21, 173, 170 and HSL 179°, 78%, 38%. It is a dark colour, so black text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#15ADAA#15ADAA
HEX#15ADAA
RGBrgb(21, 173, 170)
RGB (0–1)0.0824, 0.6784, 0.6667
RGB percentages8.2%, 67.8%, 66.7%
HSLhsl(178.8, 78.4%, 38%)
HSV / HSBhsv(178.8, 87.9%, 67.8%)
CMYK87.9%, 0%, 1.7%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,420,714
CSS custom property--colour: #15ADAA;

Brightness & contrast

Relative luminance0.32949WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.59:1
Contrast with white2.77:1WCAG normal text: Fail
Contrast with black7.59:1WCAG normal text: AAA
Greyscale equivalent#8C8C8C
Inverted#EA5255

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A1A4AAno red cones; affects about 1% of men; ΔE 36.6 from the original
Deuteranopia#8E95ABno green cones; the most common form, about 1% of men; ΔE 38.4 from the original
Tritanopia#00B2ACno blue cones; rare, and affects men and women equally; ΔE 3.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.77:1WCAG large text: Fail
Contrast with black, large text7.59:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 3.4Dark turquoise · ΔE 12.8Medium turquoise · ΔE 12.8Dark cyan · ΔE 13.1Cadetblue · ΔE 16.7Teal · ΔE 17.4
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 3.36, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD1518
Analogous#15AD5E, #1564AD
Triadic#AA15AD, #ADAA15
Split complementary#AD1564, #AD5E15
Tetradic#5E15AD, #AD1518, #64AD15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9BF3F1
Lighter +30%#6EEDEB
Lighter +20%#40E8E5
Lighter +10%#1BDAD7
Darker −10%#0F807D
Darker −20%#0A5251
Darker −30%#042524
Darker −40%#000000
More saturated +25%#00C2BE
Less saturated −25%#2D9593

Channel breakdown

R21
G173
B170
Red21 (8.2%)
Green173 (67.8%)
Blue170 (66.7%)
Hue178.82°
Saturation (HSL)78.35%
Lightness38.04%
Dominant channelGreen
Hex per channelR 15 · G AD · B AA

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Every value on this page was computed from “15adaa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.