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Recognised as Colour

#66C7BE

  • #66C7BE
  • Cyan
  • Dark
  • Nearest: Medium turquoise

#66C7BE is a cyan with RGB values 102, 199, 190 and HSL 174°, 46%, 59%. It is a dark colour, so black text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Medium turquoise.

Colour values

#66C7BE#66C7BE
HEX#66C7BE
RGBrgb(102, 199, 190)
RGB (0–1)0.4, 0.7804, 0.7451
RGB percentages40%, 78%, 74.5%
HSLhsl(174.4, 46.4%, 59%)
HSV / HSBhsv(174.4, 48.7%, 78%)
CMYK48.7%, 0%, 4.5%, 22%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,735,806
CSS custom property--colour: #66C7BE;

Brightness & contrast

Relative luminance0.47389WCAG 2.x, 0 is black and 1 is white
Perceived brightness174.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.48:1
Contrast with white2:1WCAG normal text: Fail
Contrast with black10.48:1WCAG normal text: AAA
Greyscale equivalent#B2B2B2
Inverted#993841

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BEBEBEno red cones; affects about 1% of men; ΔE 31.2 from the original
Deuteranopia#AEB2BFno green cones; the most common form, about 1% of men; ΔE 32.1 from the original
Tritanopia#31CBC4no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2:1WCAG large text: Fail
Contrast with black, large text10.48:1WCAG large text: AAA

Named colours

Medium turquoise · ΔE 8.1Light seagreen · ΔE 11.2Dark turquoise · ΔE 13.1Medium aquamarine · ΔE 14.8Turquoise · ΔE 15Cadetblue · ΔE 17.6
Nearest named CSS colourMedium turquoise (#48D1CC)ΔE 8.11, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C7666F
Analogous#66C78E, #669FC7
Triadic#BE66C7, #C7BE66
Split complementary#C7669F, #C78E66
Tetradic#8E66C7, #C7666F, #9FC766

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FBFEFD
Lighter +30%#D6F0EE
Lighter +20%#B1E2DE
Lighter +10%#8BD5CE
Darker −10%#43B7AC
Darker −20%#359289
Darker −30%#286C66
Darker −40%#1A4743
More saturated +25%#4CE1D3
Less saturated −25%#80ADA9

Channel breakdown

R102
G199
B190
Red102 (40%)
Green199 (78%)
Blue190 (74.5%)
Hue174.43°
Saturation (HSL)46.41%
Lightness59.02%
Dominant channelGreen
Hex per channelR 66 · G C7 · B BE

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Every value on this page was computed from “66c7be” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.