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Recognised as Colour

#18BCA3

  • #18BCA3
  • Cyan
  • Dark
  • Nearest: Light seagreen

#18BCA3 is a cyan with RGB values 24, 188, 163 and HSL 171°, 77%, 42%. It is a dark colour, so black text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#18BCA3#18BCA3
HEX#18BCA3
RGBrgb(24, 188, 163)
RGB (0–1)0.0941, 0.7373, 0.6392
RGB percentages9.4%, 73.7%, 63.9%
HSLhsl(170.9, 77.4%, 41.6%)
HSV / HSBhsv(170.9, 87.2%, 73.7%)
CMYK87.2%, 0%, 13.3%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,621,155
CSS custom property--colour: #18BCA3;

Brightness & contrast

Relative luminance0.38805WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.76:1
Contrast with white2.4:1WCAG normal text: Fail
Contrast with black8.76:1WCAG normal text: AAA
Greyscale equivalent#979797
Inverted#E7435C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B4B0A2no red cones; affects about 1% of men; ΔE 43.9 from the original
Deuteranopia#A0A1A5no green cones; the most common form, about 1% of men; ΔE 45.1 from the original
Tritanopia#00BFB4no blue cones; rare, and affects men and women equally; ΔE 8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.4:1WCAG large text: Fail
Contrast with black, large text8.76:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 11Medium aquamarine · ΔE 11.5Turquoise · ΔE 13.9Medium turquoise · ΔE 14.8Dark turquoise · ΔE 17.2Medium seagreen · ΔE 23.2
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 10.97, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC1831
Analogous#18BC51, #1883BC
Triadic#A318BC, #BCA318
Split complementary#BC1883, #BC5118
Tetradic#5118BC, #BC1831, #83BC18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACF4E9
Lighter +30%#7EEFDD
Lighter +20%#51E9D2
Lighter +10%#24E3C6
Darker −10%#128F7C
Darker −20%#0C6255
Darker −30%#07342D
Darker −40%#010706
More saturated +25%#00D4B4
Less saturated −25%#33A291

Channel breakdown

R24
G188
B163
Red24 (9.4%)
Green188 (73.7%)
Blue163 (63.9%)
Hue170.85°
Saturation (HSL)77.36%
Lightness41.57%
Dominant channelGreen
Hex per channelR 18 · G BC · B A3

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Every value on this page was computed from “18bca3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.