Colour

#F3003F

#F3003F
Red
Dark
Nearest: Crimson

#F3003F is a red with RGB values 243, 0, 63 and HSL 344°, 100%, 48%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F3003F#F3003F

HEX#F3003F

RGBrgb(243, 0, 63)

RGB (0–1)0.9529, 0, 0.2471

RGB percentages95.3%, 0%, 24.7%

HSLhsl(344.4, 100%, 47.6%)

HSV / HSBhsv(344.4, 100%, 95.3%)

CMYK0%, 100%, 74.1%, 4.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,925,311

CSS custom property--colour: #F3003F;

Brightness & contrast

Relative luminance0.19414WCAG 2.x, 0 is black and 1 is white

Perceived brightness134.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.88:1

Contrast with white4.3:1WCAG normal text: Fail

Contrast with black4.88:1WCAG normal text: AA

Greyscale equivalent#383838

Inverted#0CFFC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#645C3Eno red cones; affects about 1% of men; ΔE 83.3 from the original

Deuteranopia#998A37no green cones; the most common form, about 1% of men; ΔE 83.6 from the original

Tritanopia#FF0026no blue cones; rare, and affects men and women equally; ΔE 16.9 from the original

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

Contrast with white, large text4.3:1WCAG large text: AA

Contrast with black, large text4.88:1WCAG large text: AAA

Named colours

Crimson · ΔE 9.5 Tomato · ΔE 24.8 Firebrick · ΔE 25.5 Red · ΔE 29.5 Brown · ΔE 32.6 Orange red · ΔE 33.5

Nearest named CSS colourCrimson (#DC143C)ΔE 9.5, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00F3B4

Analogous#F300B8, #F33B00

Triadic#3FF300, #003FF3

Split complementary#00F33B, #00B8F3

Tetradic#B8F300, #00F3B4, #3B00F3

Tints, shades & saturation

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

Lighter +40%#FFC0D0

Lighter +30%#FF8DAB

Lighter +20%#FF5A85

Lighter +10%#FF275F

Darker −10%#C00032

Darker −20%#8D0025

Darker −30%#5A0017

Darker −40%#27000A

More saturated +25%#F3003F

Less saturated −25%#D51E4E

Channel breakdown

R243

B63

Red243 (95.3%)

Green0 (0%)

Blue63 (24.7%)

Hue344.44°

Saturation (HSL)100%

Lightness47.65%

Dominant channelRed

Hex per channelR F3 · G 00 · B 3F

Keep nerding

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

#F3003F

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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