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Recognised as Colour

#18A69C

  • #18A69C
  • Cyan
  • Dark
  • Nearest: Light seagreen

#18A69C is a cyan with RGB values 24, 166, 156 and HSL 176°, 75%, 37%. It is a dark colour, so black text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Light seagreen.

Colour values

#18A69C#18A69C
HEX#18A69C
RGBrgb(24, 166, 156)
RGB (0–1)0.0941, 0.651, 0.6118
RGB percentages9.4%, 65.1%, 61.2%
HSLhsl(175.8, 74.7%, 37.3%)
HSV / HSBhsv(175.8, 85.5%, 65.1%)
CMYK85.5%, 0%, 6%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,615,516
CSS custom property--colour: #18A69C;

Brightness & contrast

Relative luminance0.29867WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.97:1
Contrast with white3.01:1WCAG normal text: Fail
Contrast with black6.97:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#E75963

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9C9C9Cno red cones; affects about 1% of men; ΔE 37.2 from the original
Deuteranopia#8A8F9Dno green cones; the most common form, about 1% of men; ΔE 38.1 from the original
Tritanopia#00AAA3no blue cones; rare, and affects men and women equally; ΔE 2.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.01:1WCAG large text: AA
Contrast with black, large text6.97:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 4.6Dark cyan · ΔE 11.9Medium turquoise · ΔE 15.8Teal · ΔE 15.9Dark turquoise · ΔE 16.6Cadetblue · ΔE 17.3
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 4.57, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A61822
Analogous#18A655, #1869A6
Triadic#9C18A6, #A69C18
Split complementary#A61869, #A65518
Tetradic#5518A6, #A61822, #69A618

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9AF0EA
Lighter +30%#6DEAE1
Lighter +20%#41E3D8
Lighter +10%#1ED3C6
Darker −10%#127972
Darker −20%#0B4D48
Darker −30%#05201E
Darker −40%#000000
More saturated +25%#00BEB0
Less saturated −25%#308E88

Channel breakdown

R24
G166
B156
Red24 (9.4%)
Green166 (65.1%)
Blue156 (61.2%)
Hue175.77°
Saturation (HSL)74.74%
Lightness37.25%
Dominant channelGreen
Hex per channelR 18 · G A6 · B 9C

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Every value on this page was computed from “18a69c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.