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Recognised as Colour

#AD1E4E

  • #AD1E4E
  • Red
  • Dark
  • Nearest: Brown

#AD1E4E is a red with RGB values 173, 30, 78 and HSL 340°, 70%, 40%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#AD1E4E#AD1E4E
HEX#AD1E4E
RGBrgb(173, 30, 78)
RGB (0–1)0.6784, 0.1176, 0.3059
RGB percentages67.8%, 11.8%, 30.6%
HSLhsl(339.9, 70.4%, 39.8%)
HSV / HSBhsv(339.9, 82.7%, 67.8%)
CMYK0%, 82.7%, 54.9%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,345,486
CSS custom property--colour: #AD1E4E;

Brightness & contrast

Relative luminance0.10363WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.83:1
Contrast with white6.83:1WCAG normal text: AA
Contrast with black3.07:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#52E1B1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#46484Fno red cones; affects about 1% of men; ΔE 59.3 from the original
Deuteranopia#6B654Bno green cones; the most common form, about 1% of men; ΔE 60.5 from the original
Tritanopia#BD0034no 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 text6.83:1WCAG large text: AAA
Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Brown · ΔE 22.6Indian red · ΔE 23.5Pale violetred · ΔE 26.9Firebrick · ΔE 28.2Medium violet red · ΔE 28.6Crimson · ΔE 28.7
Nearest named CSS colourBrown (#A52A2A)ΔE 22.61, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1EAD7D
Analogous#AD1E96, #AD351E
Triadic#4EAD1E, #1E4EAD
Split complementary#1EAD35, #1E96AD
Tetradic#96AD1E, #1EAD7D, #351EAD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F0A7C0
Lighter +30%#E87CA0
Lighter +20%#E15081
Lighter +10%#D82662
Darker −10%#82163A
Darker −20%#560F27
Darker −30%#2B0713
Darker −40%#000000
More saturated +25%#C60546
Less saturated −25%#943756

Channel breakdown

R173
G30
B78
Red173 (67.8%)
Green30 (11.8%)
Blue78 (30.6%)
Hue339.86°
Saturation (HSL)70.44%
Lightness39.8%
Dominant channelRed
Hex per channelR AD · G 1E · B 4E

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Every value on this page was computed from “ad1e4e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.