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Recognised as Colour

#18E4FB

  • #18E4FB
  • Cyan
  • Light
  • Nearest: Dark turquoise

#18E4FB is a cyan with RGB values 24, 228, 251 and HSL 186°, 97%, 54%. It is a light colour, so black text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#18E4FB#18E4FB
HEX#18E4FB
RGBrgb(24, 228, 251)
RGB (0–1)0.0941, 0.8941, 0.9843
RGB percentages9.4%, 89.4%, 98.4%
HSLhsl(186.1, 96.6%, 53.9%)
HSV / HSBhsv(186.1, 90.4%, 98.4%)
CMYK90.4%, 9.2%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,631,483
CSS custom property--colour: #18E4FB;

Brightness & contrast

Relative luminance0.62646WCAG 2.x, 0 is black and 1 is white
Perceived brightness194.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.53:1
Contrast with white1.55:1WCAG normal text: Fail
Contrast with black13.53:1WCAG normal text: AAA
Greyscale equivalent#BABABA
Inverted#E71B04

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CEDBFCno red cones; affects about 1% of men; ΔE 39.6 from the original
Deuteranopia#B3C7FBno green cones; the most common form, about 1% of men; ΔE 41.6 from the original
Tritanopia#00EFEBno blue cones; rare, and affects men and women equally; ΔE 16.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.55:1WCAG large text: Fail
Contrast with black, large text13.53:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 13.5Medium turquoise · ΔE 16.8Aqua · ΔE 17Cyan · ΔE 17Turquoise · ΔE 21.3Sky blue · ΔE 22.3
Nearest named CSS colourDark turquoise (#00CED1)ΔE 13.52, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FB2F18
Analogous#18FBA1, #1872FB
Triadic#FB18E4, #E4FB18
Split complementary#FB1872, #FBA118
Tetradic#A118FB, #FB2F18, #72FB18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1FBFE
Lighter +30%#AEF6FE
Lighter +20%#7CF0FD
Lighter +10%#4AEAFC
Darker −10%#04C6DC
Darker −20%#0399AA
Darker −30%#026C78
Darker −40%#013F46
More saturated +25%#14E7FF
Less saturated −25%#35CDDE

Channel breakdown

R24
G228
B251
Red24 (9.4%)
Green228 (89.4%)
Blue251 (98.4%)
Hue186.08°
Saturation (HSL)96.6%
Lightness53.92%
Dominant channelBlue
Hex per channelR 18 · G E4 · B FB

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Every value on this page was computed from “18e4fb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.