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Recognised as Colour

#ECEF17

  • #ECEF17
  • Yellow
  • Light
  • Nearest: Yellow

#ECEF17 is a yellow with RGB values 236, 239, 23 and HSL 61°, 87%, 51%. It is a light colour, so black text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#ECEF17#ECEF17
HEX#ECEF17
RGBrgb(236, 239, 23)
RGB (0–1)0.9255, 0.9373, 0.0902
RGB percentages92.5%, 93.7%, 9%
HSLhsl(60.8, 87.1%, 51.4%)
HSV / HSBhsv(60.8, 90.4%, 93.7%)
CMYK1.3%, 0%, 90.4%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,527,703
CSS custom property--colour: #ECEF17;

Brightness & contrast

Relative luminance0.79628WCAG 2.x, 0 is black and 1 is white
Perceived brightness224.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.93:1
Contrast with white1.24:1WCAG normal text: Fail
Contrast with black16.93:1WCAG normal text: AAA
Greyscale equivalent#DFDFDF
Inverted#1310E8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE400no red cones; affects about 1% of men; ΔE 13.3 from the original
Deuteranopia#FFE935no green cones; the most common form, about 1% of men; ΔE 12.7 from the original
Tritanopia#FDDFCCno blue cones; rare, and affects men and women equally; ΔE 79.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.24:1WCAG large text: Fail
Contrast with black, large text16.93:1WCAG large text: AAA

Named colours

Yellow · ΔE 8.9Gold · ΔE 20.1Yellow green · ΔE 30.6Green yellow · ΔE 31.5Goldenrod · ΔE 41.1Khaki · ΔE 44.4
Nearest named CSS colourYellow (#FFFF00)ΔE 8.89, clearly different but related
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A17EF
Analogous#EF8617, #80EF17
Triadic#17ECEF, #EF17EC
Split complementary#1780EF, #8617EF
Tetradic#17EF86, #1A17EF, #EF1780

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FCFCD6
Lighter +30%#F8F9A6
Lighter +20%#F4F676
Lighter +10%#F0F247
Darker −10%#C3C50E
Darker −20%#94960A
Darker −30%#656607
Darker −40%#363604
More saturated +25%#FCFF07
Less saturated −25%#CED036

Channel breakdown

R236
G239
B23
Red236 (92.5%)
Green239 (93.7%)
Blue23 (9%)
Hue60.83°
Saturation (HSL)87.1%
Lightness51.37%
Dominant channelGreen
Hex per channelR EC · G EF · B 17

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Every value on this page was computed from “ecef17” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.