Colour

#FF2228

#FF2228
Red
Dark
Nearest: Red

#FF2228 is a red with RGB values 255, 34, 40 and HSL 358°, 100%, 57%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF2228#FF2228

HEX#FF2228

RGBrgb(255, 34, 40)

RGB (0–1)1, 0.1333, 0.1569

RGB percentages100%, 13.3%, 15.7%

HSLhsl(358.4, 100%, 56.7%)

HSV / HSBhsv(358.4, 86.7%, 100%)

CMYK0%, 86.7%, 84.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,720,424

CSS custom property--colour: #FF2228;

Brightness & contrast

Relative luminance0.22557WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.51:1

Contrast with white3.81:1WCAG normal text: Fail

Contrast with black5.51:1WCAG normal text: AA

Greyscale equivalent#515151

Inverted#00DDD7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#716524no red cones; affects about 1% of men; ΔE 83.3 from the original

Deuteranopia#A59319no green cones; the most common form, about 1% of men; ΔE 83.1 from the original

Tritanopia#FF0029no blue cones; rare, and affects men and women equally; ΔE 4 from the original

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

Contrast with white, large text3.81:1WCAG large text: AA

Contrast with black, large text5.51:1WCAG large text: AAA

Named colours

Red · ΔE 13.1 Orange red · ΔE 17.4 Tomato · ΔE 22.2 Crimson · ΔE 23.1 Firebrick · ΔE 31.2 Coral · ΔE 34.8

Nearest named CSS colourRed (#FF0000)ΔE 13.13, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#22FFF9

Analogous#FF2297, #FF8A22

Triadic#28FF22, #2228FF

Split complementary#22FF8A, #2297FF

Tetradic#97FF22, #22FFF9, #8A22FF

Tints, shades & saturation

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

Lighter +40%#FFEEEE

Lighter +30%#FFBBBD

Lighter +20%#FF888B

Lighter +10%#FF555A

Darker −10%#EE0006

Darker −20%#BB0005

Darker −30%#880004

Darker −40%#550002

More saturated +25%#FF2228

Less saturated −25%#E33E42

Channel breakdown

R255

G34

B40

Red255 (100%)

Green34 (13.3%)

Blue40 (15.7%)

Hue358.37°

Saturation (HSL)100%

Lightness56.67%

Dominant channelRed

Hex per channelR FF · G 22 · B 28

Keep nerding

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#FF2228

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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