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Recognised as Colour

#F5EF37

  • #F5EF37
  • Yellow
  • Light
  • Nearest: Yellow

#F5EF37 is a yellow with RGB values 245, 239, 55 and HSL 58°, 90%, 59%. It is a light colour, so black text on it reaches 17.3:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#F5EF37#F5EF37
HEX#F5EF37
RGBrgb(245, 239, 55)
RGB (0–1)0.9608, 0.9373, 0.2157
RGB percentages96.1%, 93.7%, 21.6%
HSLhsl(58.1, 90.5%, 58.8%)
HSV / HSBhsv(58.1, 77.6%, 96.1%)
CMYK0%, 2.4%, 77.6%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,117,559
CSS custom property--colour: #F5EF37;

Brightness & contrast

Relative luminance0.81421WCAG 2.x, 0 is black and 1 is white
Perceived brightness227.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.28:1
Contrast with white1.21:1WCAG normal text: Fail
Contrast with black17.28:1WCAG normal text: AAA
Greyscale equivalent#E3E3E3
Inverted#0A10C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE500no red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#FFEC47no green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#FFDFCDno blue cones; rare, and affects men and women equally; ΔE 73.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.21:1WCAG large text: Fail
Contrast with black, large text17.28:1WCAG large text: AAA

Named colours

Yellow · ΔE 14.2Gold · ΔE 16.9Yellow green · ΔE 30.4Green yellow · ΔE 35.4Goldenrod · ΔE 35.9Khaki · ΔE 37.9
Nearest named CSS colourYellow (#FFFF00)ΔE 14.18, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#373DF5
Analogous#F59037, #9CF537
Triadic#37F5EF, #EF37F5
Split complementary#379CF5, #9037F5
Tetradic#37F590, #373DF5, #F5379C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFF9
Lighter +30%#FCFBC9
Lighter +20%#FAF798
Lighter +10%#F7F368
Darker −10%#EDE60C
Darker −20%#BDB709
Darker −30%#8C8807
Darker −40%#5B5905
More saturated +25%#FFF82D
Less saturated −25%#DBD651

Channel breakdown

R245
G239
B55
Red245 (96.1%)
Green239 (93.7%)
Blue55 (21.6%)
Hue58.11°
Saturation (HSL)90.48%
Lightness58.82%
Dominant channelRed
Hex per channelR F5 · G EF · B 37

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Every value on this page was computed from “f5ef37” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.