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Colour

#D40D28

  • #D40D28
  • Red
  • Dark
  • Nearest: Crimson

#D40D28 is a red with RGB values 212, 13, 40 and HSL 352°, 88%, 44%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D40D28#D40D28
HEX#D40D28
RGBrgb(212, 13, 40)
RGB (0–1)0.8314, 0.051, 0.1569
RGB percentages83.1%, 5.1%, 15.7%
HSLhsl(351.9, 88.4%, 44.1%)
HSV / HSBhsv(351.9, 93.9%, 83.1%)
CMYK0%, 93.9%, 81.1%, 16.9%naive device-independent conversion; real print needs an ICC profile
24-bit integer13,897,000
CSS custom property--colour: #D40D28;

Brightness & contrast

Relative luminance0.14438WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.4:1
Contrast with white5.4:1WCAG normal text: AA
Contrast with black3.89:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#2BF2D7

Colour vision & accessibility

Protanopia#595026no red cones; affects about 1% of men; ΔE 74.3 from the original
Deuteranopia#87781Eno green cones; the most common form, about 1% of men; ΔE 73.9 from the original
Tritanopia#EA001Dno blue cones; rare, and affects men and women equally; ΔE 13.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.4:1WCAG large text: AAA
Contrast with black, large text3.89:1WCAG large text: AA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 9.19, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0DD4B9
Analogous#D40D8C, #D4550D
Triadic#28D40D, #0D28D4
Split complementary#0DD455, #0D8CD4
Tetradic#8CD40D, #0DD4B9, #550DD4

Tints, shades & saturation

Lighter +40%#FAB3BC
Lighter +30%#F78392
Lighter +20%#F45369
Lighter +10%#F1233F
Darker −10%#A40A1F
Darker −20%#740716
Darker −30%#44040D
Darker −40%#140104
More saturated +25%#E1001F
Less saturated −25%#B8293C

Channel breakdown

R212
G13
B40
Red212 (83.1%)
Green13 (5.1%)
Blue40 (15.7%)
Hue351.86°
Saturation (HSL)88.44%
Lightness44.12%
Dominant channelRed
Hex per channelR D4 · G 0D · B 28

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Every value on this page was computed from “d40d28” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.