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Recognised as Colour

#66CCCD

  • #66CCCD
  • Cyan
  • Light
  • Nearest: Medium turquoise

#66CCCD is a cyan with RGB values 102, 204, 205 and HSL 181°, 51%, 60%. It is a light colour, so black text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Medium turquoise.

Colour values

#66CCCD#66CCCD
HEX#66CCCD
RGBrgb(102, 204, 205)
RGB (0–1)0.4, 0.8, 0.8039
RGB percentages40%, 80%, 80.4%
HSLhsl(180.6, 50.7%, 60.2%)
HSV / HSBhsv(180.6, 50.2%, 80.4%)
CMYK50.2%, 0.5%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,737,101
CSS custom property--colour: #66CCCD;

Brightness & contrast

Relative luminance0.50418WCAG 2.x, 0 is black and 1 is white
Perceived brightness179.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.08:1
Contrast with white1.89:1WCAG normal text: Fail
Contrast with black11.08:1WCAG normal text: AAA
Greyscale equivalent#B6B6B6
Inverted#993332

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C1C4CDno red cones; affects about 1% of men; ΔE 30.5 from the original
Deuteranopia#AFB7CEno green cones; the most common form, about 1% of men; ΔE 31.4 from the original
Tritanopia#1CD2CCno blue cones; rare, and affects men and women equally; ΔE 13 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.89:1WCAG large text: Fail
Contrast with black, large text11.08:1WCAG large text: AAA

Named colours

Medium turquoise · ΔE 8.2Dark turquoise · ΔE 11.5Light seagreen · ΔE 13.7Turquoise · ΔE 16.5Pale turquoise · ΔE 17.1Cadetblue · ΔE 18.1
Nearest named CSS colourMedium turquoise (#48D1CC)ΔE 8.16, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD6766
Analogous#66CD9B, #6698CD
Triadic#CD66CC, #CCCD66
Split complementary#CD6698, #CD9B66
Tetradic#9B66CD, #CD6766, #99CD66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9F2F3
Lighter +20%#B3E6E6
Lighter +10%#8CD9DA
Darker −10%#40BFC0
Darker −20%#32999B
Darker −30%#267374
Darker −40%#194D4E
More saturated +25%#4DE5E6
Less saturated −25%#7FB3B4

Channel breakdown

R102
G204
B205
Red102 (40%)
Green204 (80%)
Blue205 (80.4%)
Hue180.58°
Saturation (HSL)50.74%
Lightness60.2%
Dominant channelBlue
Hex per channelR 66 · G CC · B CD

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