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Recognised as Colour

#D53709

  • #D53709
  • Red
  • Dark
  • Nearest: Orange red

#D53709 is a red with RGB values 213, 55, 9 and HSL 14°, 92%, 44%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#D53709#D53709
HEX#D53709
RGBrgb(213, 55, 9)
RGB (0–1)0.8353, 0.2157, 0.0353
RGB percentages83.5%, 21.6%, 3.5%
HSLhsl(13.5, 91.9%, 43.5%)
HSV / HSBhsv(13.5, 95.8%, 83.5%)
CMYK0%, 74.2%, 95.8%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,973,257
CSS custom property--colour: #D53709;

Brightness & contrast

Relative luminance0.16898WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.79:1
Contrast with white4.79:1WCAG normal text: AA
Contrast with black4.38:1WCAG normal text: Fail
Greyscale equivalent#555555
Inverted#2AC8F6

Colour vision & accessibility

Protanopia#695C00no red cones; affects about 1% of men; ΔE 65.1 from the original
Deuteranopia#8F7F00no green cones; the most common form, about 1% of men; ΔE 65.1 from the original
Tritanopia#EB0031no blue cones; rare, and affects men and women equally; ΔE 21.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.79:1WCAG large text: AAA
Contrast with black, large text4.38:1WCAG large text: AA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 16.75, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#09A7D5
Analogous#D50941, #D59D09
Triadic#09D537, #3709D5
Split complementary#09D59D, #0941D5
Tetradic#41D509, #09A7D5, #9D09D5

Tints, shades & saturation

Lighter +40%#FCC0AE
Lighter +30%#FA997D
Lighter +20%#F7734D
Lighter +10%#F54D1C
Darker −10%#A42A07
Darker −20%#731E05
Darker −30%#421103
Darker −40%#110401
More saturated +25%#DE3200
Less saturated −25%#B94625

Channel breakdown

R213
G55
B9
Red213 (83.5%)
Green55 (21.6%)
Blue9 (3.5%)
Hue13.53°
Saturation (HSL)91.89%
Lightness43.53%
Dominant channelRed
Hex per channelR D5 · G 37 · B 09

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Every value on this page was computed from “d53709” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.