Colour

#FF243A

#FF243A
Red
Dark
Nearest: Crimson

#FF243A is a red with RGB values 255, 36, 58 and HSL 354°, 100%, 57%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF243A#FF243A

HEX#FF243A

RGBrgb(255, 36, 58)

RGB (0–1)1, 0.1412, 0.2275

RGB percentages100%, 14.1%, 22.7%

HSLhsl(354, 100%, 57.1%)

HSV / HSBhsv(354, 85.9%, 100%)

CMYK0%, 85.9%, 77.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,720,954

CSS custom property--colour: #FF243A;

Brightness & contrast

Relative luminance0.22827WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.57:1

Contrast with white3.77:1WCAG normal text: Fail

Contrast with black5.57:1WCAG normal text: AA

Greyscale equivalent#545454

Inverted#00DBC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706638no red cones; affects about 1% of men; ΔE 83 from the original

Deuteranopia#A49430no green cones; the most common form, about 1% of men; ΔE 83.3 from the original

Tritanopia#FF0030no blue cones; rare, and affects men and women equally; ΔE 5.5 from the original

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

Contrast with white, large text3.77:1WCAG large text: AA

Contrast with black, large text5.57:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.5 Tomato · ΔE 20.7 Red · ΔE 22 Orange red · ΔE 25.5 Firebrick · ΔE 27.6 Coral · ΔE 34.2

Nearest named CSS colourCrimson (#DC143C)ΔE 15.53, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#24FFE9

Analogous#FF24A8, #FF7B24

Triadic#3AFF24, #243AFF

Split complementary#24FF7B, #24A8FF

Tetradic#A7FF24, #24FFE9, #7B24FF

Tints, shades & saturation

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

Lighter +40%#FFF0F2

Lighter +30%#FFBDC4

Lighter +20%#FF8A96

Lighter +10%#FF5768

Darker −10%#F00018

Darker −20%#BD0013

Darker −30%#8A000E

Darker −40%#570009

More saturated +25%#FF243A

Less saturated −25%#E43F50

Channel breakdown

R255

G36

B58

Red255 (100%)

Green36 (14.1%)

Blue58 (22.7%)

Hue353.97°

Saturation (HSL)100%

Lightness57.06%

Dominant channelRed

Hex per channelR FF · G 24 · B 3A

Keep nerding

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#FF243A

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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