Colour

#5A0018

#5A0018
Red
Dark
Nearest: Maroon

#5A0018 is a red with RGB values 90, 0, 24 and HSL 344°, 100%, 18%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#5A0018#5A0018

HEX#5A0018

RGBrgb(90, 0, 24)

RGB (0–1)0.3529, 0, 0.0941

RGB percentages35.3%, 0%, 9.4%

HSLhsl(344, 100%, 17.6%)

HSV / HSBhsv(344, 100%, 35.3%)

CMYK0%, 100%, 73.3%, 64.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,898,264

CSS custom property--colour: #5A0018;

Brightness & contrast

Relative luminance0.0224WCAG 2.x, 0 is black and 1 is white

Perceived brightness49.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.5:1

Contrast with white14.5:1WCAG normal text: AAA

Contrast with black1.45:1WCAG normal text: Fail

Greyscale equivalent#151515

Inverted#A5FFE7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1F1D18no red cones; affects about 1% of men; ΔE 40.2 from the original

Deuteranopia#353015no green cones; the most common form, about 1% of men; ΔE 40.9 from the original

Tritanopia#64000Bno blue cones; rare, and affects men and women equally; ΔE 11.4 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text14.5:1WCAG large text: AAA

Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Maroon · ΔE 27.8 Brown · ΔE 29.2 Dark red · ΔE 32.5 Sienna · ΔE 36.1 Saddle brown · ΔE 36.4 Firebrick · ΔE 37.3

Nearest named CSS colourMaroon (#800000)ΔE 27.76, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#005A42

Analogous#5A0045, #5A1500

Triadic#185A00, #00185A

Split complementary#005A15, #00455A

Tetradic#455A00, #005A42, #15005A

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FF2761

Lighter +30%#F30041

Lighter +20%#C00033

Lighter +10%#8D0026

Darker −10%#27000A

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#5A0018

Less saturated −25%#4F0B1D

Channel breakdown

R90

B24

Red90 (35.3%)

Green0 (0%)

Blue24 (9.4%)

Hue344°

Saturation (HSL)100%

Lightness17.65%

Dominant channelRed

Hex per channelR 5A · G 00 · B 18

Keep nerding

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#5A0018

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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