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Recognised as Colour

#D53E2A

  • #D53E2A
  • Red
  • Dark
  • Nearest: Firebrick

#D53E2A is a red with RGB values 213, 62, 42 and HSL 7°, 67%, 50%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#D53E2A#D53E2A
HEX#D53E2A
RGBrgb(213, 62, 42)
RGB (0–1)0.8353, 0.2431, 0.1647
RGB percentages83.5%, 24.3%, 16.5%
HSLhsl(7, 67.1%, 50%)
HSV / HSBhsv(7, 80.3%, 83.5%)
CMYK0%, 70.9%, 80.3%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,975,082
CSS custom property--colour: #D53E2A;

Brightness & contrast

Relative luminance0.17759WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.61:1
Contrast with white4.61:1WCAG normal text: AA
Contrast with black4.55:1WCAG normal text: AA
Greyscale equivalent#5D5D5D
Inverted#2AC1D5

Colour vision & accessibility

Protanopia#6B6026no red cones; affects about 1% of men; ΔE 62.9 from the original
Deuteranopia#908123no green cones; the most common form, about 1% of men; ΔE 63.1 from the original
Tritanopia#EB003Bno blue cones; rare, and affects men and women equally; ΔE 20.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.61:1WCAG large text: AAA
Contrast with black, large text4.55:1WCAG large text: AAA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 12.98, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2AC1D5
Analogous#D52A6C, #D5932A
Triadic#2AD53E, #3E2AD5
Split complementary#2AD593, #2A6CD5
Tetradic#6CD52A, #2AC1D5, #932AD5

Tints, shades & saturation

Lighter +40%#F7D8D4
Lighter +30%#EEB2AA
Lighter +20%#E68B7F
Lighter +10%#DD6555
Darker −10%#AA3222
Darker −20%#802519
Darker −30%#551911
Darker −40%#2B0C08
More saturated +25%#F5260A
Less saturated −25%#B5564A

Channel breakdown

R213
G62
B42
Red213 (83.5%)
Green62 (24.3%)
Blue42 (16.5%)
Hue7.02°
Saturation (HSL)67.06%
Lightness50%
Dominant channelRed
Hex per channelR D5 · G 3E · B 2A

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Every value on this page was computed from “d53e2a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.