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Colour

#FEFF05

  • #FEFF05
  • Yellow
  • Light
  • Nearest: Yellow

#FEFF05 is a yellow with RGB values 254, 255, 5 and HSL 60°, 100%, 51%. 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

#FEFF05#FEFF05
HEX#FEFF05
RGBrgb(254, 255, 5)
RGB (0–1)0.9961, 1, 0.0196
RGB percentages99.6%, 100%, 2%
HSLhsl(60.2, 100%, 51%)
HSV / HSBhsv(60.2, 98%, 100%)
CMYK0.4%, 0%, 98%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,711,429
CSS custom property--colour: #FEFF05;

Brightness & contrast

Relative luminance0.92602WCAG 2.x, 0 is black and 1 is white
Perceived brightness239.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 19.52:1
Contrast with white1.08:1WCAG normal text: Fail
Contrast with black19.52:1WCAG normal text: AAA
Greyscale equivalent#EDEDED
Inverted#0100FA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFF300no red cones; affects about 1% of men; ΔE 7.1 from the original
Deuteranopia#FFF933no green cones; the most common form, about 1% of men; ΔE 8.9 from the original
Tritanopia#FFEED9no blue cones; rare, and affects men and women equally; ΔE 85.4 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 text19.52:1WCAG large text: AAA

Named colours

Yellow · ΔE 0.6Gold · ΔE 23.5Green yellow · ΔE 33.3Yellow green · ΔE 37.9Chartreuse · ΔE 47.4Goldenrod · ΔE 47.5
Nearest named CSS colourYellow (#FFFF00)ΔE 0.58, indistinguishable to the eye
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0605FF
Analogous#FF8305, #81FF05
Triadic#05FEFF, #FF05FE
Split complementary#0581FF, #8305FF
Tetradic#05FF83, #0605FF, #FF0581

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFD1
Lighter +30%#FFFF9E
Lighter +20%#FEFF6B
Lighter +10%#FEFF38
Darker −10%#D0D100
Darker −20%#9D9E00
Darker −30%#6B6B00
Darker −40%#383800
More saturated +25%#FEFF05
Less saturated −25%#DFE024

Channel breakdown

R254
G255
B5
Red254 (99.6%)
Green255 (100%)
Blue5 (2%)
Hue60.24°
Saturation (HSL)100%
Lightness50.98%
Dominant channelGreen
Hex per channelR FE · G FF · B 05

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Every value on this page was computed from “feff05” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.