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Recognised as Colour

#558D89

  • #558D89
  • Cyan
  • Dark
  • Nearest: Cadetblue

#558D89 is a cyan with RGB values 85, 141, 137 and HSL 176°, 25%, 44%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Cadetblue.

Colour values

#558D89#558D89
HEX#558D89
RGBrgb(85, 141, 137)
RGB (0–1)0.3333, 0.5529, 0.5373
RGB percentages33.3%, 55.3%, 53.7%
HSLhsl(175.7, 24.8%, 44.3%)
HSV / HSBhsv(175.7, 39.7%, 55.3%)
CMYK39.7%, 0%, 2.8%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,606,793
CSS custom property--colour: #558D89;

Brightness & contrast

Relative luminance0.22787WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.56:1
Contrast with white3.78:1WCAG normal text: Fail
Contrast with black5.56:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#AA7276

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#878889no red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#7D808Ano green cones; the most common form, about 1% of men; ΔE 20.5 from the original
Tritanopia#3E908Cno blue cones; rare, and affects men and women equally; ΔE 6.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.78:1WCAG large text: AA
Contrast with black, large text5.56:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 7.3Teal · ΔE 12.5Dark cyan · ΔE 12.7Slate grey · ΔE 18.7Light slate grey · ΔE 18.7Gray · ΔE 19.8
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 7.33, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D5559
Analogous#558D6D, #55758D
Triadic#89558D, #8D8955
Split complementary#8D5575, #8D6D55
Tetradic#6D558D, #8D5559, #758D55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDE1DF
Lighter +30%#ADCECB
Lighter +20%#8DBBB7
Lighter +10%#6EA7A3
Darker −10%#426D6A
Darker −20%#2F4D4B
Darker −30%#1B2E2C
Darker −40%#080E0D
More saturated +25%#39A9A1
Less saturated −25%#717171

Channel breakdown

R85
G141
B137
Red85 (33.3%)
Green141 (55.3%)
Blue137 (53.7%)
Hue175.71°
Saturation (HSL)24.78%
Lightness44.31%
Dominant channelGreen
Hex per channelR 55 · G 8D · B 89

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Every value on this page was computed from “558d89” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.