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Recognised as Colour

#42BCAC

  • #42BCAC
  • Cyan
  • Dark
  • Nearest: Light seagreen

#42BCAC is a cyan with RGB values 66, 188, 172 and HSL 172°, 48%, 50%. It is a dark colour, so black text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#42BCAC#42BCAC
HEX#42BCAC
RGBrgb(66, 188, 172)
RGB (0–1)0.2588, 0.7373, 0.6745
RGB percentages25.9%, 73.7%, 67.5%
HSLhsl(172.1, 48%, 49.8%)
HSV / HSBhsv(172.1, 64.9%, 73.7%)
CMYK64.9%, 0%, 8.5%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,373,676
CSS custom property--colour: #42BCAC;

Brightness & contrast

Relative luminance0.40103WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.02:1
Contrast with white2.33:1WCAG normal text: Fail
Contrast with black9.02:1WCAG normal text: AAA
Greyscale equivalent#A1A1A1
Inverted#BD4353

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B3B2ABno red cones; affects about 1% of men; ΔE 36.9 from the original
Deuteranopia#A1A4AEno green cones; the most common form, about 1% of men; ΔE 38.5 from the original
Tritanopia#00C0B7no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.33:1WCAG large text: Fail
Contrast with black, large text9.02:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 5.9Medium turquoise · ΔE 9.8Medium aquamarine · ΔE 11.9Dark turquoise · ΔE 13.3Turquoise · ΔE 13.7Dark cyan · ΔE 19.9
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 5.87, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC4252
Analogous#42BC6F, #428FBC
Triadic#AC42BC, #BCAC42
Split complementary#BC428F, #BC6F42
Tetradic#6F42BC, #BC4252, #8FBC42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9F1EE
Lighter +30%#B3E4DE
Lighter +20%#8DD7CD
Lighter +10%#67CABD
Darker −10%#359689
Darker −20%#277167
Darker −30%#1A4B44
Darker −40%#0D2522
More saturated +25%#22DCC3
Less saturated −25%#629C95

Channel breakdown

R66
G188
B172
Red66 (25.9%)
Green188 (73.7%)
Blue172 (67.5%)
Hue172.13°
Saturation (HSL)48.03%
Lightness49.8%
Dominant channelGreen
Hex per channelR 42 · G BC · B AC

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