Nerdulator> put something in

Colour

#18EFFF

  • #18EFFF
  • Cyan
  • Light
  • Nearest: Aqua

#18EFFF is a cyan with RGB values 24, 239, 255 and HSL 184°, 100%, 55%. It is a light colour, so black text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#18EFFF#18EFFF
HEX#18EFFF
RGBrgb(24, 239, 255)
RGB (0–1)0.0941, 0.9373, 1
RGB percentages9.4%, 93.7%, 100%
HSLhsl(184.2, 100%, 54.7%)
HSV / HSBhsv(184.2, 90.6%, 100%)
CMYK90.6%, 6.3%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,634,303
CSS custom property--colour: #18EFFF;

Brightness & contrast

Relative luminance0.69147WCAG 2.x, 0 is black and 1 is white
Perceived brightness202.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.83:1
Contrast with white1.42:1WCAG normal text: Fail
Contrast with black14.83:1WCAG normal text: AAA
Greyscale equivalent#C2C2C2
Inverted#E71000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#DBE4FFno red cones; affects about 1% of men; ΔE 43.4 from the original
Deuteranopia#BFD0FFno green cones; the most common form, about 1% of men; ΔE 45 from the original
Tritanopia#00F9F4no blue cones; rare, and affects men and women equally; ΔE 12.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.42:1WCAG large text: Fail
Contrast with black, large text14.83:1WCAG large text: AAA

Named colours

Aqua · ΔE 11.2Cyan · ΔE 11.2Dark turquoise · ΔE 13.5Medium turquoise · ΔE 16.2Turquoise · ΔE 18.1Light seagreen · ΔE 25.6
Nearest named CSS colourAqua (#00FFFF)ΔE 11.21, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF2818
Analogous#18FF9B, #187CFF
Triadic#FF18EF, #EFFF18
Split complementary#FF187C, #FF9B18
Tetradic#9B18FF, #FF2818, #7CFF18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4FDFF
Lighter +30%#B1FAFF
Lighter +20%#7EF6FF
Lighter +10%#4BF3FF
Darker −10%#00D4E4
Darker −20%#00A5B1
Darker −30%#00757E
Darker −40%#00464B
More saturated +25%#18EFFF
Less saturated −25%#35D6E2

Channel breakdown

R24
G239
B255
Red24 (9.4%)
Green239 (93.7%)
Blue255 (100%)
Hue184.16°
Saturation (HSL)100%
Lightness54.71%
Dominant channelBlue
Hex per channelR 18 · G EF · B FF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

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