Recognised as Colour
#ECF351
- #ECF351
- Yellow
- Light
- Nearest: Yellow
#ECF351 is a yellow with RGB values 236, 243, 81 and HSL 63°, 87%, 64%. It is a light colour, so black text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Yellow.
Colour values
#ECF351#ECF351
HEX#ECF351
RGBrgb(236, 243, 81)
RGB (0–1)0.9255, 0.9529, 0.3176
RGB percentages92.5%, 95.3%, 31.8%
HSLhsl(62.6, 87.1%, 63.5%)
HSV / HSBhsv(62.6, 66.7%, 95.3%)
CMYK2.9%, 0%, 66.7%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,528,785
CSS custom property--colour: #ECF351;
Brightness & contrast
Relative luminance0.82528WCAG 2.x, 0 is black and 1 is white
Perceived brightness228.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.51:1
Contrast with white1.2:1WCAG normal text: Fail
Contrast with black17.51:1WCAG normal text: AAA
Greyscale equivalent#E6E6E6
Inverted#130CAE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.2:1WCAG large text: Fail
Contrast with black, large text17.51:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#5851F3
Analogous#F3A951, #9BF351
Triadic#51ECF3, #F351EC
Split complementary#519BF3, #A951F3
Tetradic#51F3A9, #5851F3, #F3519B
Tints, shades & saturation
Channel breakdown
R236
G243
B81
Red236 (92.5%)
Green243 (95.3%)
Blue81 (31.8%)
Hue62.59°
Saturation (HSL)87.1%
Lightness63.53%
Dominant channelGreen
Hex per channelR EC · G F3 · B 51
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