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Recognised as Colour

#DE2800

  • #DE2800
  • Red
  • Dark
  • Nearest: Orange red

#DE2800 is a red with RGB values 222, 40, 0 and HSL 11°, 100%, 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

#DE2800#DE2800
HEX#DE2800
RGBrgb(222, 40, 0)
RGB (0–1)0.8706, 0.1569, 0
RGB percentages87.1%, 15.7%, 0%
HSLhsl(10.8, 100%, 43.5%)
HSV / HSBhsv(10.8, 100%, 87.1%)
CMYK0%, 82%, 100%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,559,232
CSS custom property--colour: #DE2800;

Brightness & contrast

Relative luminance0.17047WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.76:1
Contrast with white4.76:1WCAG normal text: AA
Contrast with black4.41:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#21D7FF

Colour vision & accessibility

Protanopia#665900no red cones; affects about 1% of men; ΔE 72.6 from the original
Deuteranopia#928100no green cones; the most common form, about 1% of men; ΔE 71.8 from the original
Tritanopia#F50025no blue cones; rare, and affects men and women equally; ΔE 15 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.76:1WCAG large text: AAA
Contrast with black, large text4.41:1WCAG large text: AA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 12.11, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#00B6DE
Analogous#DE0047, #DE9700
Triadic#00DE28, #2800DE
Split complementary#00DE97, #0047DE
Tetradic#47DE00, #00B6DE, #9700DE

Tints, shades & saturation

Lighter +40%#FFBAAB
Lighter +30%#FF9078
Lighter +20%#FF6745
Lighter +10%#FF3D12
Darker −10%#AB1F00
Darker −20%#781600
Darker −30%#450C00
Darker −40%#120300
More saturated +25%#DE2800
Less saturated −25%#C23A1C

Channel breakdown

R222
G40
B0
Red222 (87.1%)
Green40 (15.7%)
Blue0 (0%)
Hue10.81°
Saturation (HSL)100%
Lightness43.53%
Dominant channelRed
Hex per channelR DE · G 28 · B 00

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Every value on this page was computed from “de2800” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.