Recognised as Colour

#FD0031

#FD0031
Red
Dark
Nearest: Crimson

#FD0031 is a red with RGB values 253, 0, 49 and HSL 348°, 100%, 50%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FD0031#FD0031

HEX#FD0031

RGBrgb(253, 0, 49)

RGB (0–1)0.9922, 0, 0.1922

RGB percentages99.2%, 0%, 19.2%

HSLhsl(348.4, 100%, 49.6%)

HSV / HSBhsv(348.4, 100%, 99.2%)

CMYK0%, 100%, 80.6%, 0.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,580,657

CSS custom property--colour: #FD0031;

Brightness & contrast

Relative luminance0.21104WCAG 2.x, 0 is black and 1 is white

Perceived brightness139.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.22:1

Contrast with white4.02:1WCAG normal text: Fail

Contrast with black5.22:1WCAG normal text: AA

Greyscale equivalent#393939

Inverted#02FFCE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A5F2Fno red cones; affects about 1% of men; ΔE 86 from the original

Deuteranopia#A08F25no green cones; the most common form, about 1% of men; ΔE 86 from the original

Tritanopia#FF001Fno blue cones; rare, and affects men and women equally; ΔE 9.3 from the original

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

Contrast with white, large text4.02:1WCAG large text: AA

Contrast with black, large text5.22:1WCAG large text: AAA

Named colours

Crimson · ΔE 18.5 Red · ΔE 18.9 Tomato · ΔE 24.3 Orange red · ΔE 24.5 Firebrick · ΔE 30 Coral · ΔE 37.7

Nearest named CSS colourCrimson (#DC143C)ΔE 18.48, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00FDCC

Analogous#FD00AF, #FD4D00

Triadic#31FD00, #0031FD

Split complementary#00FD4D, #00AFFD

Tetradic#B0FD00, #00FDCC, #4E00FD

Tints, shades & saturation

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

Lighter +40%#FFCAD4

Lighter +30%#FF97AB

Lighter +20%#FF6482

Lighter +10%#FF3159

Darker −10%#CA0027

Darker −20%#97001D

Darker −30%#640013

Darker −40%#310009

More saturated +25%#FD0031

Less saturated −25%#DD2044

Channel breakdown

R253

B49

Red253 (99.2%)

Green0 (0%)

Blue49 (19.2%)

Hue348.38°

Saturation (HSL)100%

Lightness49.61%

Dominant channelRed

Hex per channelR FD · G 00 · B 31

Keep nerding

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

#FD0031

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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