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Recognised as Colour

#19AD8A

  • #19AD8A
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#19AD8A is a cyan with RGB values 25, 173, 138 and HSL 166°, 75%, 39%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#19AD8A#19AD8A
HEX#19AD8A
RGBrgb(25, 173, 138)
RGB (0–1)0.098, 0.6784, 0.5412
RGB percentages9.8%, 67.8%, 54.1%
HSLhsl(165.8, 74.7%, 38.8%)
HSV / HSBhsv(165.8, 85.5%, 67.8%)
CMYK85.5%, 0%, 20.2%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,682,826
CSS custom property--colour: #19AD8A;

Brightness & contrast

Relative luminance0.31929WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.39:1
Contrast with white2.84:1WCAG normal text: Fail
Contrast with black7.39:1WCAG normal text: AAA
Greyscale equivalent#8B8B8B
Inverted#E65275

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A8A188no red cones; affects about 1% of men; ΔE 43.5 from the original
Deuteranopia#96948Cno green cones; the most common form, about 1% of men; ΔE 44.1 from the original
Tritanopia#00AEA3no blue cones; rare, and affects men and women equally; ΔE 13.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.84:1WCAG large text: Fail
Contrast with black, large text7.39:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 14Light seagreen · ΔE 16Medium seagreen · ΔE 17Sea green · ΔE 17.7Turquoise · ΔE 21.5Medium turquoise · ΔE 22.3
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 13.95, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD193C
Analogous#19AD40, #1986AD
Triadic#8A19AD, #AD8A19
Split complementary#AD1986, #AD4019
Tetradic#4019AD, #AD193C, #86AD19

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1F1DE
Lighter +30%#74EBCF
Lighter +20%#48E4BF
Lighter +10%#1FDAAE
Darker −10%#138066
Darker −20%#0C5443
Darker −30%#06271F
Darker −40%#000000
More saturated +25%#00C697
Less saturated −25%#32947D

Channel breakdown

R25
G173
B138
Red25 (9.8%)
Green173 (67.8%)
Blue138 (54.1%)
Hue165.81°
Saturation (HSL)74.75%
Lightness38.82%
Dominant channelGreen
Hex per channelR 19 · G AD · B 8A

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Every value on this page was computed from “19ad8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.