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Recognised as Colour

#18565F

  • #18565F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#18565F is a cyan with RGB values 24, 86, 95 and HSL 188°, 60%, 23%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#18565F#18565F
HEX#18565F
RGBrgb(24, 86, 95)
RGB (0–1)0.0941, 0.3373, 0.3725
RGB percentages9.4%, 33.7%, 37.3%
HSLhsl(187.6, 59.7%, 23.3%)
HSV / HSBhsv(187.6, 74.7%, 37.3%)
CMYK74.7%, 9.5%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,594,975
CSS custom property--colour: #18565F;

Brightness & contrast

Relative luminance0.07676WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.28:1
Contrast with white8.28:1WCAG normal text: AAA
Contrast with black2.54:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#E7A9A0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4E5360no red cones; affects about 1% of men; ΔE 17.4 from the original
Deuteranopia#444B5Fno green cones; the most common form, about 1% of men; ΔE 18.4 from the original
Tritanopia#005A59no blue cones; rare, and affects men and women equally; ΔE 8.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.28:1WCAG large text: AAA
Contrast with black, large text2.54:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 8.6Teal · ΔE 19.9Dim grey · ΔE 22.3Slate grey · ΔE 23.9Dark cyan · ΔE 24Light slate grey · ΔE 26.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 8.6, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F2118
Analogous#185F44, #18335F
Triadic#5F1856, #565F18
Split complementary#5F1832, #5F4418
Tetradic#45185F, #5F2118, #335F18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6ACBD9
Lighter +30%#41BDCF
Lighter +20%#2DA0B0
Lighter +10%#227B88
Darker −10%#0E3136
Darker −20%#030C0E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#09616E
Less saturated −25%#274B50

Channel breakdown

R24
G86
B95
Red24 (9.4%)
Green86 (33.7%)
Blue95 (37.3%)
Hue187.61°
Saturation (HSL)59.66%
Lightness23.33%
Dominant channelBlue
Hex per channelR 18 · G 56 · B 5F

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Every value on this page was computed from “18565f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.