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Recognised as Colour

#FDFF40

  • #FDFF40
  • Yellow
  • Light
  • Nearest: Yellow

#FDFF40 is a yellow with RGB values 253, 255, 64 and HSL 61°, 100%, 63%. It is a light colour, so black text on it reaches 19.6:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FDFF40#FDFF40
HEX#FDFF40
RGBrgb(253, 255, 64)
RGB (0–1)0.9922, 1, 0.251
RGB percentages99.2%, 100%, 25.1%
HSLhsl(60.6, 100%, 62.5%)
HSV / HSBhsv(60.6, 74.9%, 100%)
CMYK0.8%, 0%, 74.9%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,645,952
CSS custom property--colour: #FDFF40;

Brightness & contrast

Relative luminance0.92773WCAG 2.x, 0 is black and 1 is white
Perceived brightness240.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 19.55:1
Contrast with white1.07:1WCAG normal text: Fail
Contrast with black19.55:1WCAG normal text: AAA
Greyscale equivalent#F1F1F1
Inverted#0200BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFF407no red cones; affects about 1% of men; ΔE 9.8 from the original
Deuteranopia#FFF950no green cones; the most common form, about 1% of men; ΔE 7.8 from the original
Tritanopia#FFEFDBno blue cones; rare, and affects men and women equally; ΔE 76 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.07:1WCAG large text: Fail
Contrast with black, large text19.55:1WCAG large text: AAA

Named colours

Yellow · ΔE 10.6Gold · ΔE 22Yellow green · ΔE 31.7Green yellow · ΔE 31.8Khaki · ΔE 41.3Goldenrod · ΔE 42.5
Nearest named CSS colourYellow (#FFFF00)ΔE 10.57, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4240FF
Analogous#FFA140, #9EFF40
Triadic#40FDFF, #FF40FD
Split complementary#409EFF, #A140FF
Tetradic#40FFA2, #4240FF, #FF409E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFD9
Lighter +20%#FEFFA6
Lighter +10%#FEFF73
Darker −10%#FCFF0D
Darker −20%#D7D900
Darker −30%#A4A600
Darker −40%#727300
More saturated +25%#FDFF40
Less saturated −25%#E6E758

Channel breakdown

R253
G255
B64
Red253 (99.2%)
Green255 (100%)
Blue64 (25.1%)
Hue60.63°
Saturation (HSL)100%
Lightness62.55%
Dominant channelGreen
Hex per channelR FD · G FF · B 40

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Every value on this page was computed from “fdff40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.