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Recognised as Colour

#5A1817

  • #5A1817
  • Red
  • Dark
  • Nearest: Maroon

#5A1817 is a red with RGB values 90, 24, 23 and HSL 1°, 59%, 22%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#5A1817#5A1817
HEX#5A1817
RGBrgb(90, 24, 23)
RGB (0–1)0.3529, 0.0941, 0.0902
RGB percentages35.3%, 9.4%, 9%
HSLhsl(0.9, 59.3%, 22.2%)
HSV / HSBhsv(0.9, 74.4%, 35.3%)
CMYK0%, 73.3%, 74.4%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,904,407
CSS custom property--colour: #5A1817;

Brightness & contrast

Relative luminance0.02889WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.31:1
Contrast with white13.31:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#A5E7E8

Colour vision & accessibility

Protanopia#2A2616no red cones; affects about 1% of men; ΔE 32.2 from the original
Deuteranopia#3B3515no green cones; the most common form, about 1% of men; ΔE 32.7 from the original
Tritanopia#640618no blue cones; rare, and affects men and women equally; ΔE 9.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.31:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Nearest named CSS colourMaroon (#800000)ΔE 27.68, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#17595A
Analogous#5A1737, #5A3A17
Triadic#175A18, #18175A
Split complementary#175A39, #17385A
Tetradic#385A17, #17595A, #3A175A

Tints, shades & saturation

Lighter +40%#D86765
Lighter +30%#CD3F3D
Lighter +20%#AB2E2C
Lighter +10%#832321
Darker −10%#310D0D
Darker −20%#090202
Darker −30%#000000
Darker −40%#000000
More saturated +25%#680A09
Less saturated −25%#4C2625

Channel breakdown

R90
G24
B23
Red90 (35.3%)
Green24 (9.4%)
Blue23 (9%)
Hue0.9°
Saturation (HSL)59.29%
Lightness22.16%
Dominant channelRed
Hex per channelR 5A · G 18 · B 17

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Every value on this page was computed from “5a1817” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.