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Recognised as Colour

#EFFF20

  • #EFFF20
  • Yellow
  • Light
  • Nearest: Yellow

#EFFF20 is a yellow with RGB values 239, 255, 32 and HSL 64°, 100%, 56%. 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

#EFFF20#EFFF20
HEX#EFFF20
RGBrgb(239, 255, 32)
RGB (0–1)0.9373, 1, 0.1255
RGB percentages93.7%, 100%, 12.5%
HSLhsl(64.3, 100%, 56.3%)
HSV / HSBhsv(64.3, 87.5%, 100%)
CMYK6.3%, 0%, 87.5%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,728,416
CSS custom property--colour: #EFFF20;

Brightness & contrast

Relative luminance0.89975WCAG 2.x, 0 is black and 1 is white
Perceived brightness235.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 19:1
Contrast with white1.11:1WCAG normal text: Fail
Contrast with black19:1WCAG normal text: AAA
Greyscale equivalent#EBEBEB
Inverted#1000DF

Colour vision & accessibility

Protanopia#FFF200no red cones; affects about 1% of men; ΔE 12.8 from the original
Deuteranopia#FFF53Dno green cones; the most common form, about 1% of men; ΔE 14.1 from the original
Tritanopia#FFEFDAno blue cones; rare, and affects men and women equally; ΔE 83.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.11:1WCAG large text: Fail
Contrast with black, large text19:1WCAG large text: AAA

Named colours

Nearest named CSS colourYellow (#FFFF00)ΔE 7.77, clearly different but related
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#3020FF
Analogous#FFA020, #80FF20
Triadic#20EFFF, #FF20EF
Split complementary#207FFF, #A020FF
Tetradic#20FFA0, #3020FF, #FF207F

Tints, shades & saturation

Lighter +40%#FEFFEC
Lighter +30%#FAFFB9
Lighter +20%#F6FF86
Lighter +10%#F3FF53
Darker −10%#DBEC00
Darker −20%#ACB900
Darker −30%#7C8600
Darker −40%#4D5300
More saturated +25%#EFFF20
Less saturated −25%#D7E33C

Channel breakdown

R239
G255
B32
Red239 (93.7%)
Green255 (100%)
Blue32 (12.5%)
Hue64.3°
Saturation (HSL)100%
Lightness56.27%
Dominant channelGreen
Hex per channelR EF · G FF · B 20

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Every value on this page was computed from “efff20” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.