Recognised as Colour

#FD2540

#FD2540
Red
Dark
Nearest: Crimson

#FD2540 is a red with RGB values 253, 37, 64 and HSL 353°, 98%, 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 Crimson.

Colour values

#FD2540#FD2540

HEX#FD2540

RGBrgb(253, 37, 64)

RGB (0–1)0.9922, 0.1451, 0.251

RGB percentages99.2%, 14.5%, 25.1%

HSLhsl(352.5, 98.2%, 56.9%)

HSV / HSBhsv(352.5, 85.4%, 99.2%)

CMYK0%, 85.4%, 74.7%, 0.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,590,144

CSS custom property--colour: #FD2540;

Brightness & contrast

Relative luminance0.22576WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.9 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#555555

Inverted#02DABF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6F663Fno red cones; affects about 1% of men; ΔE 82.2 from the original

Deuteranopia#A39337no green cones; the most common form, about 1% of men; ΔE 82.4 from the original

Tritanopia#FF0033no blue cones; rare, and affects men and women equally; ΔE 7.5 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

Crimson · ΔE 12.5 Tomato · ΔE 20.8 Red · ΔE 25.8 Firebrick · ΔE 26.2 Orange red · ΔE 28.8 Brown · ΔE 33.8

Nearest named CSS colourCrimson (#DC143C)ΔE 12.51, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#25FDE2

Analogous#FD25AC, #FD7625

Triadic#40FD25, #2540FD

Split complementary#25FD76, #25ACFD

Tetradic#ACFD25, #25FDE2, #7625FD

Tints, shades & saturation

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

Lighter +40%#FFEFF1

Lighter +30%#FEBDC5

Lighter +20%#FE8A99

Lighter +10%#FD586C

Darker −10%#ED0220

Darker −20%#BA0219

Darker −30%#880112

Darker −40%#55010B

More saturated +25%#FF233E

Less saturated −25%#E24155

Channel breakdown

R253

G37

B64

Red253 (99.2%)

Green37 (14.5%)

Blue64 (25.1%)

Hue352.5°

Saturation (HSL)98.18%

Lightness56.86%

Dominant channelRed

Hex per channelR FD · G 25 · B 40

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#FD2540

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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