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Recognised as Colour

#42CFCD

  • #42CFCD
  • Cyan
  • Light
  • Nearest: Medium turquoise

#42CFCD is a cyan with RGB values 66, 207, 205 and HSL 179°, 59%, 54%. It is a light colour, so black text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Medium turquoise.

Colour values

#42CFCD#42CFCD
HEX#42CFCD
RGBrgb(66, 207, 205)
RGB (0–1)0.2588, 0.8118, 0.8039
RGB percentages25.9%, 81.2%, 80.4%
HSLhsl(179.1, 59.5%, 53.5%)
HSV / HSBhsv(179.1, 68.1%, 81.2%)
CMYK68.1%, 0%, 1%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,378,573
CSS custom property--colour: #42CFCD;

Brightness & contrast

Relative luminance0.50192WCAG 2.x, 0 is black and 1 is white
Perceived brightness176.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.04:1
Contrast with white1.9:1WCAG normal text: Fail
Contrast with black11.04:1WCAG normal text: AAA
Greyscale equivalent#B1B1B1
Inverted#BD3032

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C2C5CDno red cones; affects about 1% of men; ΔE 38.1 from the original
Deuteranopia#ADB5CEno green cones; the most common form, about 1% of men; ΔE 39.6 from the original
Tritanopia#00D5CEno blue cones; rare, and affects men and women equally; ΔE 7.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.9:1WCAG large text: Fail
Contrast with black, large text11.04:1WCAG large text: AAA

Named colours

Medium turquoise · ΔE 1.8Dark turquoise · ΔE 4.8Turquoise · ΔE 10.5Light seagreen · ΔE 11Medium aquamarine · ΔE 18.3Aqua · ΔE 19.1
Nearest named CSS colourMedium turquoise (#48D1CC)ΔE 1.77, below the just-noticeable difference
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CF4244
Analogous#42CF87, #428ACF
Triadic#CD42CF, #CFCD42
Split complementary#CF428A, #CF8742
Tetradic#8742CF, #CF4244, #8ACF42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5F8F8
Lighter +30%#BCEEED
Lighter +20%#93E4E3
Lighter +10%#6BD9D8
Darker −10%#2DB1AF
Darker −20%#238887
Darker −30%#18605F
Darker −40%#0E3736
More saturated +25%#24EDEA
Less saturated −25%#60B1B0

Channel breakdown

R66
G207
B205
Red66 (25.9%)
Green207 (81.2%)
Blue205 (80.4%)
Hue179.15°
Saturation (HSL)59.49%
Lightness53.53%
Dominant channelGreen
Hex per channelR 42 · G CF · B CD

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Every value on this page was computed from “42cfcd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.