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Recognised as Colour

#5A172D

  • #5A172D
  • Red
  • Dark
  • Nearest: Brown

#5A172D is a red with RGB values 90, 23, 45 and HSL 340°, 59%, 22%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#5A172D#5A172D
HEX#5A172D
RGBrgb(90, 23, 45)
RGB (0–1)0.3529, 0.0902, 0.1765
RGB percentages35.3%, 9%, 17.6%
HSLhsl(340.3, 59.3%, 22.2%)
HSV / HSBhsv(340.3, 74.4%, 35.3%)
CMYK0%, 74.4%, 50%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,904,173
CSS custom property--colour: #5A172D;

Brightness & contrast

Relative luminance0.02976WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.16:1
Contrast with white13.16:1WCAG normal text: AAA
Contrast with black1.6:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#A5E8D2

Colour vision & accessibility

Protanopia#26282Eno red cones; affects about 1% of men; ΔE 32.7 from the original
Deuteranopia#38352Bno green cones; the most common form, about 1% of men; ΔE 33.4 from the original
Tritanopia#620C20no blue cones; rare, and affects men and women equally; ΔE 10.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.16:1WCAG large text: AAA
Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 36.99, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#175A44
Analogous#5A174F, #5A2317
Triadic#2D5A17, #172D5A
Split complementary#175A23, #174F5A
Tetradic#4E5A17, #175A44, #22175A

Tints, shades & saturation

Lighter +40%#D8658B
Lighter +30%#CD3D6C
Lighter +20%#AB2C56
Lighter +10%#832141
Darker −10%#310D19
Darker −20%#090204
Darker −30%#000000
Darker −40%#000000
More saturated +25%#680928
Less saturated −25%#4C2532

Channel breakdown

R90
G23
B45
Red90 (35.3%)
Green23 (9%)
Blue45 (17.6%)
Hue340.3°
Saturation (HSL)59.29%
Lightness22.16%
Dominant channelRed
Hex per channelR 5A · G 17 · B 2D

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Every value on this page was computed from “5a172d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.