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Recognised as Colour

#18AA78

  • #18AA78
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#18AA78 is a cyan with RGB values 24, 170, 120 and HSL 159°, 75%, 38%. It is a dark colour, so black text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#18AA78#18AA78
HEX#18AA78
RGBrgb(24, 170, 120)
RGB (0–1)0.0941, 0.6667, 0.4706
RGB percentages9.4%, 66.7%, 47.1%
HSLhsl(159.5, 75.3%, 38%)
HSV / HSBhsv(159.5, 85.9%, 66.7%)
CMYK85.9%, 0%, 29.4%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,616,504
CSS custom property--colour: #18AA78;

Brightness & contrast

Relative luminance0.303WCAG 2.x, 0 is black and 1 is white
Perceived brightness137 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.06:1
Contrast with white2.97:1WCAG normal text: Fail
Contrast with black7.06:1WCAG normal text: AAA
Greyscale equivalent#878787
Inverted#E75587

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A79D75no red cones; affects about 1% of men; ΔE 45.8 from the original
Deuteranopia#96917Bno green cones; the most common form, about 1% of men; ΔE 46.1 from the original
Tritanopia#00AA9Dno blue cones; rare, and affects men and women equally; ΔE 21.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.97:1WCAG large text: Fail
Contrast with black, large text7.06:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 9.1Sea green · ΔE 13.9Medium aquamarine · ΔE 18.4Light seagreen · ΔE 24.8Dark seagreen · ΔE 26.3Turquoise · ΔE 28
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 9.13, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA184A
Analogous#18AA2F, #1893AA
Triadic#7818AA, #AA7818
Split complementary#AA1893, #AA2F18
Tetradic#2F18AA, #AA184A, #93AA18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9DF1D4
Lighter +30%#70EBC1
Lighter +20%#43E5AD
Lighter +10%#1ED798
Darker −10%#127D58
Darker −20%#0B5139
Darker −30%#052419
Darker −40%#000000
More saturated +25%#00C280
Less saturated −25%#309270

Channel breakdown

R24
G170
B120
Red24 (9.4%)
Green170 (66.7%)
Blue120 (47.1%)
Hue159.45°
Saturation (HSL)75.26%
Lightness38.04%
Dominant channelGreen
Hex per channelR 18 · G AA · B 78

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Every value on this page was computed from “18aa78” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.