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Colour

#ECF100

  • #ECF100
  • Yellow
  • Light
  • Nearest: Yellow

#ECF100 is a yellow with RGB values 236, 241, 0 and HSL 61°, 100%, 47%. It is a light colour, so black text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#ECF100#ECF100
HEX#ECF100
RGBrgb(236, 241, 0)
RGB (0–1)0.9255, 0.9451, 0
RGB percentages92.5%, 94.5%, 0%
HSLhsl(61.2, 100%, 47.3%)
HSV / HSBhsv(61.2, 100%, 94.5%)
CMYK2.1%, 0%, 100%, 5.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,528,192
CSS custom property--colour: #ECF100;

Brightness & contrast

Relative luminance0.80743WCAG 2.x, 0 is black and 1 is white
Perceived brightness225.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.15:1
Contrast with white1.22:1WCAG normal text: Fail
Contrast with black17.15:1WCAG normal text: AAA
Greyscale equivalent#DFDFDF
Inverted#130EFF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE600no red cones; affects about 1% of men; ΔE 13.4 from the original
Deuteranopia#FFEA2Eno green cones; the most common form, about 1% of men; ΔE 13.4 from the original
Tritanopia#FDE1CDno blue cones; rare, and affects men and women equally; ΔE 82.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.22:1WCAG large text: Fail
Contrast with black, large text17.15:1WCAG large text: AAA

Named colours

Yellow · ΔE 6.9Gold · ΔE 21.6Green yellow · ΔE 30.9Yellow green · ΔE 32Goldenrod · ΔE 43.4Lawn green · ΔE 45.5
Nearest named CSS colourYellow (#FFFF00)ΔE 6.86, clearly different but related
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0500F1
Analogous#F17D00, #74F100
Triadic#00ECF1, #F100EC
Split complementary#0074F1, #7D00F1
Tetradic#00F17D, #0500F1, #F10074

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FEFFBE
Lighter +30%#FDFF8B
Lighter +20%#FCFF58
Lighter +10%#FAFF25
Darker −10%#BABE00
Darker −20%#888B00
Darker −30%#565800
Darker −40%#242500
More saturated +25%#ECF100
Less saturated −25%#CFD31E

Channel breakdown

R236
G241
B0
Red236 (92.5%)
Green241 (94.5%)
Blue0 (0%)
Hue61.24°
Saturation (HSL)100%
Lightness47.25%
Dominant channelGreen
Hex per channelR EC · G F1 · B 00

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Every value on this page was computed from “ecf100” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.