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Recognised as Colour

#5B172F

  • #5B172F
  • Red
  • Dark
  • Nearest: Brown

#5B172F is a red with RGB values 91, 23, 47 and HSL 339°, 60%, 22%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#5B172F#5B172F
HEX#5B172F
RGBrgb(91, 23, 47)
RGB (0–1)0.3569, 0.0902, 0.1843
RGB percentages35.7%, 9%, 18.4%
HSLhsl(338.8, 59.6%, 22.4%)
HSV / HSBhsv(338.8, 74.7%, 35.7%)
CMYK0%, 74.7%, 48.4%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,969,711
CSS custom property--colour: #5B172F;

Brightness & contrast

Relative luminance0.03042WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.06:1
Contrast with white13.06:1WCAG normal text: AAA
Contrast with black1.61:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#A4E8D0

Colour vision & accessibility

Protanopia#262830no red cones; affects about 1% of men; ΔE 32.8 from the original
Deuteranopia#38362Dno green cones; the most common form, about 1% of men; ΔE 34.2 from the original
Tritanopia#630D21no blue cones; rare, and affects men and women equally; ΔE 11.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.06:1WCAG large text: AAA
Contrast with black, large text1.61:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 37.37, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#175B43
Analogous#5B1751, #5B2117
Triadic#2F5B17, #172F5B
Split complementary#175B21, #17515B
Tetradic#515B17, #175B43, #21175B

Tints, shades & saturation

Lighter +40%#D8668E
Lighter +30%#CE3D70
Lighter +20%#AC2C59
Lighter +10%#842144
Darker −10%#320D1A
Darker −20%#0A0205
Darker −30%#000000
Darker −40%#000000
More saturated +25%#69092B
Less saturated −25%#4D2533

Channel breakdown

R91
G23
B47
Red91 (35.7%)
Green23 (9%)
Blue47 (18.4%)
Hue338.82°
Saturation (HSL)59.65%
Lightness22.35%
Dominant channelRed
Hex per channelR 5B · G 17 · B 2F

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Every value on this page was computed from “5b172f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.