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Recognised as Colour

#18553E

  • #18553E
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#18553E is a cyan with RGB values 24, 85, 62 and HSL 157°, 56%, 21%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#18553E#18553E
HEX#18553E
RGBrgb(24, 85, 62)
RGB (0–1)0.0941, 0.3333, 0.2431
RGB percentages9.4%, 33.3%, 24.3%
HSLhsl(157.4, 56%, 21.4%)
HSV / HSBhsv(157.4, 71.8%, 33.3%)
CMYK71.8%, 0%, 27.1%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,594,686
CSS custom property--colour: #18553E;

Brightness & contrast

Relative luminance0.07039WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.72:1
Contrast with white8.72:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#E7AAC1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#534F3Dno red cones; affects about 1% of men; ΔE 24.2 from the original
Deuteranopia#4B493Fno green cones; the most common form, about 1% of men; ΔE 24.5 from the original
Tritanopia#00554Fno blue cones; rare, and affects men and women equally; ΔE 10.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.72:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.1Teal · ΔE 23.3Dark olivegreen · ΔE 25.9Dark cyan · ΔE 26.9Sea green · ΔE 27.1Dim grey · ΔE 29.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.12, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#55182F
Analogous#18551F, #184E55
Triadic#3E1855, #553E18
Split complementary#55184E, #551F18
Tetradic#1F1855, #55182F, #4E5518

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#65D4AA
Lighter +30%#3EC894
Lighter +20%#2EA578
Lighter +10%#237D5B
Darker −10%#0D2D21
Darker −20%#020504
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A6341
Less saturated −25%#26473B

Channel breakdown

R24
G85
B62
Red24 (9.4%)
Green85 (33.3%)
Blue62 (24.3%)
Hue157.38°
Saturation (HSL)55.96%
Lightness21.37%
Dominant channelGreen
Hex per channelR 18 · G 55 · B 3E

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Every value on this page was computed from “18553e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.