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Colour

#FFA451

  • #FFA451
  • Orange
  • Dark
  • Nearest: Sandy brown

#FFA451 is a orange with RGB values 255, 164, 81 and HSL 29°, 100%, 66%. It is a dark colour, so black text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Sandy brown.

Colour values

#FFA451#FFA451
HEX#FFA451
RGBrgb(255, 164, 81)
RGB (0–1)1, 0.6431, 0.3176
RGB percentages100%, 64.3%, 31.8%
HSLhsl(28.6, 100%, 65.9%)
HSV / HSBhsv(28.6, 68.2%, 100%)
CMYK0%, 35.7%, 68.2%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,753,745
CSS custom property--colour: #FFA451;

Brightness & contrast

Relative luminance0.48405WCAG 2.x, 0 is black and 1 is white
Perceived brightness189.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.68:1
Contrast with white1.97:1WCAG normal text: Fail
Contrast with black10.68:1WCAG normal text: AAA
Greyscale equivalent#B1B1B1
Inverted#005BAE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C0AC48no red cones; affects about 1% of men; ΔE 31.8 from the original
Deuteranopia#D5C152no green cones; the most common form, about 1% of men; ΔE 32.8 from the original
Tritanopia#FF9092no blue cones; rare, and affects men and women equally; ΔE 41.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.97:1WCAG large text: Fail
Contrast with black, large text10.68:1WCAG large text: AAA

Named colours

Sandy brown · ΔE 9.6Peru · ΔE 16.3Light salmon · ΔE 21.7Chocolate · ΔE 21.8Coral · ΔE 21.9Goldenrod · ΔE 22.7
Nearest named CSS colourSandy brown (#F4A460)ΔE 9.63, clearly different but related
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#51ACFF
Analogous#FF5155, #FFFB51
Triadic#51FFA4, #A451FF
Split complementary#51FFFB, #5155FF
Tetradic#55FF51, #51ACFF, #FB51FF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFF4EA
Lighter +20%#FFD9B7
Lighter +10%#FFBF84
Darker −10%#FF891E
Darker −20%#EA7000
Darker −30%#B75700
Darker −40%#843F00
More saturated +25%#FFA451
Less saturated −25%#E9A567

Channel breakdown

R255
G164
B81
Red255 (100%)
Green164 (64.3%)
Blue81 (31.8%)
Hue28.62°
Saturation (HSL)100%
Lightness65.88%
Dominant channelRed
Hex per channelR FF · G A4 · B 51

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Every value on this page was computed from “ffa451” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.