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Recognised as Colour

#FFDE17

  • #FFDE17
  • Yellow
  • Light
  • Nearest: Gold

#FFDE17 is a yellow with RGB values 255, 222, 23 and HSL 51°, 100%, 55%. It is a light colour, so black text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FFDE17#FFDE17
HEX#FFDE17
RGBrgb(255, 222, 23)
RGB (0–1)1, 0.8706, 0.0902
RGB percentages100%, 87.1%, 9%
HSLhsl(51.5, 100%, 54.5%)
HSV / HSBhsv(51.5, 91%, 100%)
CMYK0%, 12.9%, 91%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,768,535
CSS custom property--colour: #FFDE17;

Brightness & contrast

Relative luminance0.73564WCAG 2.x, 0 is black and 1 is white
Perceived brightness220.1 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.71:1
Contrast with white1.34:1WCAG normal text: Fail
Contrast with black15.71:1WCAG normal text: AAA
Greyscale equivalent#D7D7D7
Inverted#0021E8

Colour vision & accessibility

Protanopia#F6D800no red cones; affects about 1% of men; ΔE 2.6 from the original
Deuteranopia#FEE32Eno green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#FFCCBEno blue cones; rare, and affects men and women equally; ΔE 75.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.34:1WCAG large text: Fail
Contrast with black, large text15.71:1WCAG large text: AAA

Named colours

Nearest named CSS colourGold (#FFD700)ΔE 3.89, a close match
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1738FF
Analogous#FF6A17, #ACFF17
Triadic#17FFDE, #DE17FF
Split complementary#17ACFF, #6A17FF
Tetradic#17FF6A, #1738FF, #FF17AC

Tints, shades & saturation

Lighter +40%#FFFBE3
Lighter +30%#FFF4B0
Lighter +20%#FFED7D
Lighter +10%#FFE54A
Darker −10%#E3C300
Darker −20%#B09700
Darker −30%#7D6B00
Darker −40%#4A3F00
More saturated +25%#FFDE17
Less saturated −25%#E2C934

Channel breakdown

R255
G222
B23
Red255 (100%)
Green222 (87.1%)
Blue23 (9%)
Hue51.47°
Saturation (HSL)100%
Lightness54.51%
Dominant channelRed
Hex per channelR FF · G DE · B 17

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Every value on this page was computed from “ffde17” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.