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Recognised as Colour

#57C0AB

  • #57C0AB
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#57C0AB is a cyan with RGB values 87, 192, 171 and HSL 168°, 45%, 55%. It is a dark colour, so black text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#57C0AB#57C0AB
HEX#57C0AB
RGBrgb(87, 192, 171)
RGB (0–1)0.3412, 0.7529, 0.6706
RGB percentages34.1%, 75.3%, 67.1%
HSLhsl(168, 45.5%, 54.7%)
HSV / HSBhsv(168, 54.7%, 75.3%)
CMYK54.7%, 0%, 10.9%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,750,955
CSS custom property--colour: #57C0AB;

Brightness & contrast

Relative luminance0.42666WCAG 2.x, 0 is black and 1 is white
Perceived brightness165 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.53:1
Contrast with white2.2:1WCAG normal text: Fail
Contrast with black9.53:1WCAG normal text: AAA
Greyscale equivalent#A8A8A8
Inverted#A83F54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B9B6AAno red cones; affects about 1% of men; ΔE 34.9 from the original
Deuteranopia#A9AAADno green cones; the most common form, about 1% of men; ΔE 35.9 from the original
Tritanopia#13C3BAno blue cones; rare, and affects men and women equally; ΔE 10.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.2:1WCAG large text: Fail
Contrast with black, large text9.53:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 8.7Light seagreen · ΔE 9.7Medium turquoise · ΔE 11.4Turquoise · ΔE 14.2Dark turquoise · ΔE 16.1Dark seagreen · ΔE 20.3
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 8.65, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C0576C
Analogous#57C077, #57A1C0
Triadic#AB57C0, #C0AB57
Split complementary#C057A1, #C07757
Tetradic#7757C0, #C0576C, #A1C057

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF8F5
Lighter +30%#C6EAE3
Lighter +20%#A1DCD0
Lighter +10%#7CCEBE
Darker −10%#3EA691
Darker −20%#308171
Darker −30%#225C50
Darker −40%#143730
More saturated +25%#3ADDBC
Less saturated −25%#74A39A

Channel breakdown

R87
G192
B171
Red87 (34.1%)
Green192 (75.3%)
Blue171 (67.1%)
Hue168°
Saturation (HSL)45.45%
Lightness54.71%
Dominant channelGreen
Hex per channelR 57 · G C0 · B AB

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Every value on this page was computed from “57c0ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.