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Recognised as Colour

#186C51

  • #186C51
  • Cyan
  • Dark
  • Nearest: Sea green

#186C51 is a cyan with RGB values 24, 108, 81 and HSL 161°, 64%, 26%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#186C51#186C51
HEX#186C51
RGBrgb(24, 108, 81)
RGB (0–1)0.0941, 0.4235, 0.3176
RGB percentages9.4%, 42.4%, 31.8%
HSLhsl(160.7, 63.6%, 25.9%)
HSV / HSBhsv(160.7, 77.8%, 42.4%)
CMYK77.8%, 0%, 25%, 57.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,600,593
CSS custom property--colour: #186C51;

Brightness & contrast

Relative luminance0.11513WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.36:1
Contrast with white6.36:1WCAG normal text: AA
Contrast with black3.3:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#E793AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#696450no red cones; affects about 1% of men; ΔE 30.1 from the original
Deuteranopia#5F5C53no green cones; the most common form, about 1% of men; ΔE 31 from the original
Tritanopia#006C64no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.36:1WCAG large text: AAA
Contrast with black, large text3.3:1WCAG large text: AA

Named colours

Sea green · ΔE 18.2Teal · ΔE 18.6Dark cyan · ΔE 20.9Dark slate grey · ΔE 24.8Dark olivegreen · ΔE 25.8Cadetblue · ΔE 28.5
Nearest named CSS colourSea green (#2E8B57)ΔE 18.22, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6C1833
Analogous#186C27, #185D6C
Triadic#51186C, #6C5118
Split complementary#6C185D, #6C2718
Tetradic#27186C, #6C1833, #5D6C18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#71DFBC
Lighter +30%#47D6A8
Lighter +20%#2BBF90
Lighter +10%#219670
Darker −10%#0F4232
Darker −20%#051912
Darker −30%#000000
Darker −40%#000000
More saturated +25%#077D57
Less saturated −25%#285B4B

Channel breakdown

R24
G108
B81
Red24 (9.4%)
Green108 (42.4%)
Blue81 (31.8%)
Hue160.71°
Saturation (HSL)63.64%
Lightness25.88%
Dominant channelGreen
Hex per channelR 18 · G 6C · B 51

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Every value on this page was computed from “186c51” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.