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Recognised as Colour

#66C19D

  • #66C19D
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#66C19D is a cyan with RGB values 102, 193, 157 and HSL 156°, 42%, 58%. It is a dark colour, so black text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#66C19D#66C19D
HEX#66C19D
RGBrgb(102, 193, 157)
RGB (0–1)0.4, 0.7569, 0.6157
RGB percentages40%, 75.7%, 61.6%
HSLhsl(156.3, 42.3%, 57.8%)
HSV / HSBhsv(156.3, 47.2%, 75.7%)
CMYK47.2%, 0%, 18.7%, 24.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,734,237
CSS custom property--colour: #66C19D;

Brightness & contrast

Relative luminance0.43399WCAG 2.x, 0 is black and 1 is white
Perceived brightness166.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.68:1
Contrast with white2.17:1WCAG normal text: Fail
Contrast with black9.68:1WCAG normal text: AAA
Greyscale equivalent#ABABAB
Inverted#993E62

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BEB69Bno red cones; affects about 1% of men; ΔE 34.5 from the original
Deuteranopia#AFAC9Fno green cones; the most common form, about 1% of men; ΔE 34.6 from the original
Tritanopia#48C1B7no blue cones; rare, and affects men and women equally; ΔE 14.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.17:1WCAG large text: Fail
Contrast with black, large text9.68:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 4.9Dark seagreen · ΔE 14.5Light seagreen · ΔE 17.3Turquoise · ΔE 18.7Medium turquoise · ΔE 18.9Medium seagreen · ΔE 20.2
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 4.89, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C1668A
Analogous#66C170, #66B7C1
Triadic#9D66C1, #C19D66
Split complementary#C166B7, #C17066
Tetradic#7066C1, #C1668A, #B7C166

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F7FCFA
Lighter +30%#D3EDE3
Lighter +20%#AFDECB
Lighter +10%#8AD0B4
Darker −10%#46AE85
Darker −20%#388969
Darker −30%#29654D
Darker −40%#1A4132
More saturated +25%#4BDCA3
Less saturated −25%#81A697

Channel breakdown

R102
G193
B157
Red102 (40%)
Green193 (75.7%)
Blue157 (61.6%)
Hue156.26°
Saturation (HSL)42.33%
Lightness57.84%
Dominant channelGreen
Hex per channelR 66 · G C1 · B 9D

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Every value on this page was computed from “66c19d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.