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Recognised as Colour

#613F47

  • #613F47
  • Red
  • Dark
  • Nearest: Dim grey

#613F47 is a red with RGB values 97, 63, 71 and HSL 346°, 21%, 31%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#613F47#613F47
HEX#613F47
RGBrgb(97, 63, 71)
RGB (0–1)0.3804, 0.2471, 0.2784
RGB percentages38%, 24.7%, 27.8%
HSLhsl(345.9, 21.2%, 31.4%)
HSV / HSBhsv(345.9, 35.1%, 38%)
CMYK0%, 35.1%, 26.8%, 62%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,373,191
CSS custom property--colour: #613F47;

Brightness & contrast

Relative luminance0.06551WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.09:1
Contrast with white9.09:1WCAG normal text: AAA
Contrast with black2.31:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#9EC0B8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#444547no red cones; affects about 1% of men; ΔE 16.4 from the original
Deuteranopia#4C4B46no green cones; the most common form, about 1% of men; ΔE 16.9 from the original
Tritanopia#673D42no blue cones; rare, and affects men and women equally; ΔE 4.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.09:1WCAG large text: AAA
Contrast with black, large text2.31:1WCAG large text: Fail

Named colours

Dim grey · ΔE 21.2Gray · ΔE 28Dark slate grey · ΔE 28.3Slate grey · ΔE 31Rosy brown · ΔE 33.3Light slate grey · ΔE 33.5
Nearest named CSS colourDim grey (#696969)ΔE 21.16, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F6159
Analogous#613F58, #61483F
Triadic#47613F, #3F4761
Split complementary#3F6148, #3F5861
Tetradic#58613F, #3F6159, #483F61

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6A6AE
Lighter +30%#B18891
Lighter +20%#9D6975
Lighter +10%#80535E
Darker −10%#422B30
Darker −20%#23171A
Darker −30%#040303
Darker −40%#000000
More saturated +25%#752B3C
Less saturated −25%#505050

Channel breakdown

R97
G63
B71
Red97 (38%)
Green63 (24.7%)
Blue71 (27.8%)
Hue345.88°
Saturation (HSL)21.25%
Lightness31.37%
Dominant channelRed
Hex per channelR 61 · G 3F · B 47

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Every value on this page was computed from “613f47” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.