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Recognised as Colour

#55D09D

  • #55D09D
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#55D09D is a cyan with RGB values 85, 208, 157 and HSL 155°, 57%, 57%. It is a dark colour, so black text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#55D09D#55D09D
HEX#55D09D
RGBrgb(85, 208, 157)
RGB (0–1)0.3333, 0.8157, 0.6157
RGB percentages33.3%, 81.6%, 61.6%
HSLhsl(155.1, 56.7%, 57.5%)
HSV / HSBhsv(155.1, 59.1%, 81.6%)
CMYK59.1%, 0%, 24.5%, 18.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,623,965
CSS custom property--colour: #55D09D;

Brightness & contrast

Relative luminance0.49477WCAG 2.x, 0 is black and 1 is white
Perceived brightness174.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.9:1
Contrast with white1.93:1WCAG normal text: Fail
Contrast with black10.9:1WCAG normal text: AAA
Greyscale equivalent#B2B2B2
Inverted#AA2F62

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CDC29Ano red cones; affects about 1% of men; ΔE 44.3 from the original
Deuteranopia#BBB6A0no green cones; the most common form, about 1% of men; ΔE 44.4 from the original
Tritanopia#10D0C2no blue cones; rare, and affects men and women equally; ΔE 20.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.93:1WCAG large text: Fail
Contrast with black, large text10.9:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 10.5Medium seagreen · ΔE 14Aquamarine · ΔE 17.2Turquoise · ΔE 20.2Dark seagreen · ΔE 22.9Light green · ΔE 24.2
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 10.52, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D05588
Analogous#55D05F, #55C5D0
Triadic#9D55D0, #D09D55
Split complementary#D055C6, #D05F55
Tetradic#5F55D0, #D05588, #C5D055

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5FCF9
Lighter +30%#CDF1E2
Lighter +20%#A5E6CB
Lighter +10%#7DDBB4
Darker −10%#34BE85
Darker −20%#299669
Darker −30%#1E6E4D
Darker −40%#134631
More saturated +25%#3AEBA2
Less saturated −25%#70B598

Channel breakdown

R85
G208
B157
Red85 (33.3%)
Green208 (81.6%)
Blue157 (61.6%)
Hue155.12°
Saturation (HSL)56.68%
Lightness57.45%
Dominant channelGreen
Hex per channelR 55 · G D0 · B 9D

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Every value on this page was computed from “55d09d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.