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Recognised as Colour

#DF511F

  • #DF511F
  • Orange
  • Dark
  • Nearest: Tomato

#DF511F is a orange with RGB values 223, 81, 31 and HSL 16°, 76%, 50%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#DF511F#DF511F
HEX#DF511F
RGBrgb(223, 81, 31)
RGB (0–1)0.8745, 0.3176, 0.1216
RGB percentages87.5%, 31.8%, 12.2%
HSLhsl(15.6, 75.6%, 49.8%)
HSV / HSBhsv(15.6, 86.1%, 87.5%)
CMYK0%, 63.7%, 86.1%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,635,295
CSS custom property--colour: #DF511F;

Brightness & contrast

Relative luminance0.21672WCAG 2.x, 0 is black and 1 is white
Perceived brightness137.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.33:1
Contrast with white3.94:1WCAG normal text: Fail
Contrast with black5.33:1WCAG normal text: AA
Greyscale equivalent#6C6C6C
Inverted#20AEE0

Colour vision & accessibility

Protanopia#7A6C15no red cones; affects about 1% of men; ΔE 58.7 from the original
Deuteranopia#9D8C16no green cones; the most common form, about 1% of men; ΔE 59.1 from the original
Tritanopia#F62848no blue cones; rare, and affects men and women equally; ΔE 29.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.94:1WCAG large text: AA
Contrast with black, large text5.33:1WCAG large text: AAA

Named colours

Nearest named CSS colourTomato (#FF6347)ΔE 13.14, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1FADDF
Analogous#DF1F4D, #DFB11F
Triadic#1FDF51, #511FDF
Split complementary#1FDFB1, #1F4DDF
Tetradic#4DDF1F, #1FADDF, #B11FDF

Tints, shades & saturation

Lighter +40%#F9DCD1
Lighter +30%#F2B9A5
Lighter +20%#EC9678
Lighter +10%#E6734B
Darker −10%#B24119
Darker −20%#853013
Darker −30%#59200C
Darker −40%#2C1006
More saturated +25%#FE4200
Less saturated −25%#BF603F

Channel breakdown

R223
G81
B31
Red223 (87.5%)
Green81 (31.8%)
Blue31 (12.2%)
Hue15.62°
Saturation (HSL)75.59%
Lightness49.8%
Dominant channelRed
Hex per channelR DF · G 51 · B 1F

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Every value on this page was computed from “df511f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.