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Recognised as Colour

#DD0556

  • #DD0556
  • Red
  • Dark
  • Nearest: Crimson

#DD0556 is a red with RGB values 221, 5, 86 and HSL 338°, 96%, 44%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#DD0556#DD0556
HEX#DD0556
RGBrgb(221, 5, 86)
RGB (0–1)0.8667, 0.0196, 0.3373
RGB percentages86.7%, 2%, 33.7%
HSLhsl(337.5, 95.6%, 44.3%)
HSV / HSBhsv(337.5, 97.7%, 86.7%)
CMYK0%, 97.7%, 61.1%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,484,822
CSS custom property--colour: #DD0556;

Brightness & contrast

Relative luminance0.16153WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.96:1
Contrast with white4.96:1WCAG normal text: AA
Contrast with black4.23:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#22FAA9

Colour vision & accessibility

Protanopia#565657no red cones; affects about 1% of men; ΔE 76.7 from the original
Deuteranopia#887E51no green cones; the most common form, about 1% of men; ΔE 77.6 from the original
Tritanopia#F20033no blue cones; rare, and affects men and women equally; ΔE 26.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.96:1WCAG large text: AAA
Contrast with black, large text4.23:1WCAG large text: AA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 15.96, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#05DD8C
Analogous#DD05C2, #DD2005
Triadic#56DD05, #0556DD
Split complementary#05DD20, #05C2DD
Tetradic#C2DD05, #05DD8C, #2005DD

Tints, shades & saturation

Lighter +40%#FDB1CD
Lighter +30%#FC7FAE
Lighter +20%#FB4D8E
Lighter +10%#FA1B6F
Darker −10%#AB0443
Darker −20%#79032F
Darker −30%#47021C
Darker −40%#160008
More saturated +25%#E20055
Less saturated −25%#C1215D

Channel breakdown

R221
G5
B86
Red221 (86.7%)
Green5 (2%)
Blue86 (33.7%)
Hue337.5°
Saturation (HSL)95.58%
Lightness44.31%
Dominant channelRed
Hex per channelR DD · G 05 · B 56

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Every value on this page was computed from “dd0556” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.