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Colour

#A3274C

  • #A3274C
  • Red
  • Dark
  • Nearest: Brown

#A3274C is a red with RGB values 163, 39, 76 and HSL 342°, 61%, 40%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A3274C#A3274C
HEX#A3274C
RGBrgb(163, 39, 76)
RGB (0–1)0.6392, 0.1529, 0.298
RGB percentages63.9%, 15.3%, 29.8%
HSLhsl(342.1, 61.4%, 39.6%)
HSV / HSBhsv(342.1, 76.1%, 63.9%)
CMYK0%, 76.1%, 53.4%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,692,428
CSS custom property--colour: #A3274C;

Brightness & contrast

Relative luminance0.09759WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.11:1
Contrast with white7.11:1WCAG normal text: AAA
Contrast with black2.95:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#5CD8B3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#47484Dno red cones; affects about 1% of men; ΔE 53.3 from the original
Deuteranopia#676149no green cones; the most common form, about 1% of men; ΔE 54.5 from the original
Tritanopia#B20337no blue cones; rare, and affects men and women equally; ΔE 17.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.11:1WCAG large text: AAA
Contrast with black, large text2.95:1WCAG large text: Fail

Named colours

Brown · ΔE 21.7Indian red · ΔE 22Pale violetred · ΔE 25.6Firebrick · ΔE 29Medium violet red · ΔE 31.4Maroon · ΔE 31.7
Nearest named CSS colourBrown (#A52A2A)ΔE 21.73, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#27A37E
Analogous#A3278A, #A34027
Triadic#4CA327, #274CA3
Split complementary#27A340, #278AA3
Tetradic#8AA327, #27A37E, #4027A3

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBABBE
Lighter +30%#E1829E
Lighter +20%#D7597F
Lighter +10%#CC315F
Darker −10%#7A1D39
Darker −20%#511326
Darker −30%#280912
Darker −40%#000000
More saturated +25%#BC0E42
Less saturated −25%#8A4056

Channel breakdown

R163
G39
B76
Red163 (63.9%)
Green39 (15.3%)
Blue76 (29.8%)
Hue342.1°
Saturation (HSL)61.39%
Lightness39.61%
Dominant channelRed
Hex per channelR A3 · G 27 · B 4C

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Every value on this page was computed from “a3274c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.