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Recognised as Colour

#185A55

  • #185A55
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#185A55 is a cyan with RGB values 24, 90, 85 and HSL 175°, 58%, 22%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#185A55#185A55
HEX#185A55
RGBrgb(24, 90, 85)
RGB (0–1)0.0941, 0.3529, 0.3333
RGB percentages9.4%, 35.3%, 33.3%
HSLhsl(175.5, 57.9%, 22.4%)
HSV / HSBhsv(175.5, 73.3%, 35.3%)
CMYK73.3%, 0%, 5.6%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,595,989
CSS custom property--colour: #185A55;

Brightness & contrast

Relative luminance0.08162WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.98:1
Contrast with white7.98:1WCAG normal text: AAA
Contrast with black2.63:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#E7A5AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#555555no red cones; affects about 1% of men; ΔE 21.8 from the original
Deuteranopia#4B4E56no green cones; the most common form, about 1% of men; ΔE 22.3 from the original
Tritanopia#005C58no blue cones; rare, and affects men and women equally; ΔE 3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.98:1WCAG large text: AAA
Contrast with black, large text2.63:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.3Teal · ΔE 16.7Dark cyan · ΔE 20.9Dim grey · ΔE 24Cadetblue · ΔE 27.2Slate grey · ΔE 27.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.27, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A181D
Analogous#185A34, #183E5A
Triadic#55185A, #5A5518
Split complementary#5A183E, #5A3418
Tetradic#34185A, #5A181D, #3E5A18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#67D7CE
Lighter +30%#3FCCC1
Lighter +20%#2DABA1
Lighter +10%#23827B
Darker −10%#0D322F
Darker −20%#030909
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A6861
Less saturated −25%#264C49

Channel breakdown

R24
G90
B85
Red24 (9.4%)
Green90 (35.3%)
Blue85 (33.3%)
Hue175.45°
Saturation (HSL)57.89%
Lightness22.35%
Dominant channelGreen
Hex per channelR 18 · G 5A · B 55

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Every value on this page was computed from “185a55” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.