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Recognised as Colour

#FDFF18

  • #FDFF18
  • Yellow
  • Light
  • Nearest: Yellow

#FDFF18 is a yellow with RGB values 253, 255, 24 and HSL 61°, 100%, 55%. It is a light colour, so black text on it reaches 19.5:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FDFF18#FDFF18
HEX#FDFF18
RGBrgb(253, 255, 24)
RGB (0–1)0.9922, 1, 0.0941
RGB percentages99.2%, 100%, 9.4%
HSLhsl(60.5, 100%, 54.7%)
HSV / HSBhsv(60.5, 90.6%, 100%)
CMYK0.8%, 0%, 90.6%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,645,912
CSS custom property--colour: #FDFF18;

Brightness & contrast

Relative luminance0.92469WCAG 2.x, 0 is black and 1 is white
Perceived brightness239.5 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 19.49:1
Contrast with white1.08:1WCAG normal text: Fail
Contrast with black19.49:1WCAG normal text: AAA
Greyscale equivalent#EEEEEE
Inverted#0200E7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFF300no red cones; affects about 1% of men; ΔE 7 from the original
Deuteranopia#FFF938no green cones; the most common form, about 1% of men; ΔE 8.7 from the original
Tritanopia#FFEEDAno blue cones; rare, and affects men and women equally; ΔE 84.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.08:1WCAG large text: Fail
Contrast with black, large text19.49:1WCAG large text: AAA

Named colours

Yellow · ΔE 2.3Gold · ΔE 23.2Green yellow · ΔE 32.5Yellow green · ΔE 36.5Goldenrod · ΔE 46.7Chartreuse · ΔE 46.9
Nearest named CSS colourYellow (#FFFF00)ΔE 2.28, below the just-noticeable difference
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A18FF
Analogous#FF8D18, #8AFF18
Triadic#18FDFF, #FF18FD
Split complementary#1889FF, #8E18FF
Tetradic#18FF8E, #1A18FF, #FF1889

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFE4
Lighter +30%#FEFFB1
Lighter +20%#FEFF7E
Lighter +10%#FDFF4B
Darker −10%#E2E400
Darker −20%#AFB100
Darker −30%#7D7E00
Darker −40%#4A4B00
More saturated +25%#FDFF18
Less saturated −25%#E1E235

Channel breakdown

R253
G255
B24
Red253 (99.2%)
Green255 (100%)
Blue24 (9.4%)
Hue60.52°
Saturation (HSL)100%
Lightness54.71%
Dominant channelGreen
Hex per channelR FD · G FF · B 18

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Every value on this page was computed from “fdff18” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.