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Colour

#F1FF09

  • #F1FF09
  • Yellow
  • Light
  • Nearest: Yellow

#F1FF09 is a yellow with RGB values 241, 255, 9 and HSL 63°, 100%, 52%. It is a light colour, so black text on it reaches 19:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#F1FF09#F1FF09
HEX#F1FF09
RGBrgb(241, 255, 9)
RGB (0–1)0.9451, 1, 0.0353
RGB percentages94.5%, 100%, 3.5%
HSLhsl(63.4, 100%, 51.8%)
HSV / HSBhsv(63.4, 96.5%, 100%)
CMYK5.5%, 0%, 96.5%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,859,465
CSS custom property--colour: #F1FF09;

Brightness & contrast

Relative luminance0.9024WCAG 2.x, 0 is black and 1 is white
Perceived brightness235.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 19.05:1
Contrast with white1.1:1WCAG normal text: Fail
Contrast with black19.05:1WCAG normal text: AAA
Greyscale equivalent#EAEAEA
Inverted#0E00F6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFF200no red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#FFF635no green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#FFEFD9no blue cones; rare, and affects men and women equally; ΔE 85.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.1:1WCAG large text: Fail
Contrast with black, large text19.05:1WCAG large text: AAA

Named colours

Yellow · ΔE 6Gold · ΔE 27.4Green yellow · ΔE 27.8Yellow green · ΔE 34.3Chartreuse · ΔE 41.9Lawn green · ΔE 42
Nearest named CSS colourYellow (#FFFF00)ΔE 6.04, clearly different but related
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1709FF
Analogous#FF9209, #76FF09
Triadic#09F1FF, #FF09F1
Split complementary#0976FF, #9209FF
Tetradic#09FF92, #1709FF, #FF0976

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFFD5
Lighter +30%#FAFFA2
Lighter +20%#F7FF6F
Lighter +10%#F4FF3C
Darker −10%#C9D500
Darker −20%#99A200
Darker −30%#696F00
Darker −40%#393C00
More saturated +25%#F1FF09
Less saturated −25%#D6E028

Channel breakdown

R241
G255
B9
Red241 (94.5%)
Green255 (100%)
Blue9 (3.5%)
Hue63.41°
Saturation (HSL)100%
Lightness51.76%
Dominant channelGreen
Hex per channelR F1 · G FF · B 09

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Every value on this page was computed from “f1ff09” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.