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Recognised as Colour

#18BD83

  • #18BD83
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#18BD83 is a cyan with RGB values 24, 189, 131 and HSL 159°, 77%, 42%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#18BD83#18BD83
HEX#18BD83
RGBrgb(24, 189, 131)
RGB (0–1)0.0941, 0.7412, 0.5137
RGB percentages9.4%, 74.1%, 51.4%
HSLhsl(158.9, 77.5%, 41.8%)
HSV / HSBhsv(158.9, 87.3%, 74.1%)
CMYK87.3%, 0%, 30.7%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,621,379
CSS custom property--colour: #18BD83;

Brightness & contrast

Relative luminance0.38228WCAG 2.x, 0 is black and 1 is white
Perceived brightness152 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.65:1
Contrast with white2.43:1WCAG normal text: Fail
Contrast with black8.65:1WCAG normal text: AAA
Greyscale equivalent#969696
Inverted#E7427C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BAAE80no red cones; affects about 1% of men; ΔE 50.5 from the original
Deuteranopia#A8A187no green cones; the most common form, about 1% of men; ΔE 51.1 from the original
Tritanopia#00BDAEno blue cones; rare, and affects men and women equally; ΔE 24.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.43:1WCAG large text: Fail
Contrast with black, large text8.65:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 7.9Medium aquamarine · ΔE 19.2Sea green · ΔE 21.2Aquamarine · ΔE 26.4Light green · ΔE 26.8Turquoise · ΔE 27.5
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 7.94, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BD1852
Analogous#18BD30, #18A5BD
Triadic#8318BD, #BD8318
Split complementary#BD18A5, #BD3018
Tetradic#3018BD, #BD1852, #A5BD18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACF5DB
Lighter +30%#7FEFC8
Lighter +20%#52E9B4
Lighter +10%#25E3A0
Darker −10%#129064
Darker −20%#0D6244
Darker −30%#073525
Darker −40%#010806
More saturated +25%#00D58A
Less saturated −25%#33A27B

Channel breakdown

R24
G189
B131
Red24 (9.4%)
Green189 (74.1%)
Blue131 (51.4%)
Hue158.91°
Saturation (HSL)77.46%
Lightness41.76%
Dominant channelGreen
Hex per channelR 18 · G BD · B 83

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Every value on this page was computed from “18bd83” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.