Colour

#FF222D

#FF222D
Red
Dark
Nearest: Red

#FF222D is a red with RGB values 255, 34, 45 and HSL 357°, 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

#FF222D#FF222D

HEX#FF222D

RGBrgb(255, 34, 45)

RGB (0–1)1, 0.1333, 0.1765

RGB percentages100%, 13.3%, 17.6%

HSLhsl(357, 100%, 56.7%)

HSV / HSBhsv(357, 86.7%, 100%)

CMYK0%, 86.7%, 82.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,720,429

CSS custom property--colour: #FF222D;

Brightness & contrast

Relative luminance0.22594WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.52:1

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

Contrast with black5.52:1WCAG normal text: AA

Greyscale equivalent#525252

Inverted#00DDD2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#71652Ano red cones; affects about 1% of men; ΔE 83.1 from the original

Deuteranopia#A59320no green cones; the most common form, about 1% of men; ΔE 83 from the original

Tritanopia#FF002Bno blue cones; rare, and affects men and women equally; ΔE 3.7 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 text5.52:1WCAG large text: AAA

Named colours

Red · ΔE 15.5 Orange red · ΔE 19.5 Crimson · ΔE 20.9 Tomato · ΔE 21.5 Firebrick · ΔE 30 Coral · ΔE 34.5

Nearest named CSS colourRed (#FF0000)ΔE 15.47, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#22FFF4

Analogous#FF229B, #FF8522

Triadic#2DFF22, #222DFF

Split complementary#22FF85, #229CFF

Tetradic#9CFF22, #22FFF4, #8622FF

Tints, shades & saturation

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

Lighter +40%#FFEEEF

Lighter +30%#FFBBBE

Lighter +20%#FF888E

Lighter +10%#FF555D

Darker −10%#EE000C

Darker −20%#BB0009

Darker −30%#880007

Darker −40%#550004

More saturated +25%#FF222D

Less saturated −25%#E33E46

Channel breakdown

R255

G34

B45

Red255 (100%)

Green34 (13.3%)

Blue45 (17.6%)

Hue357.01°

Saturation (HSL)100%

Lightness56.67%

Dominant channelRed

Hex per channelR FF · G 22 · B 2D

Keep nerding

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#FF222D

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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