Colour

#F51C08

#F51C08
Red
Dark
Nearest: Red

#F51C08 is a red with RGB values 245, 28, 8 and HSL 5°, 94%, 50%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#F51C08#F51C08

HEX#F51C08

RGBrgb(245, 28, 8)

RGB (0–1)0.9608, 0.1098, 0.0314

RGB percentages96.1%, 11%, 3.1%

HSLhsl(5.1, 93.7%, 49.6%)

HSV / HSBhsv(5.1, 96.7%, 96.1%)

CMYK0%, 88.6%, 96.7%, 3.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,063,496

CSS custom property--colour: #F51C08;

Brightness & contrast

Relative luminance0.20261WCAG 2.x, 0 is black and 1 is white

Perceived brightness135.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.05:1

Contrast with white4.16:1WCAG normal text: Fail

Contrast with black5.05:1WCAG normal text: AA

Greyscale equivalent#494949

Inverted#0AE3F7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C5F00no red cones; affects about 1% of men; ΔE 81.6 from the original

Deuteranopia#9F8C00no green cones; the most common form, about 1% of men; ΔE 80.3 from the original

Tritanopia#FF001Eno blue cones; rare, and affects men and women equally; ΔE 7.8 from the original

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

Contrast with white, large text4.16:1WCAG large text: AA

Contrast with black, large text5.05:1WCAG large text: AAA

Named colours

Red · ΔE 6.3 Orange red · ΔE 10.6 Tomato · ΔE 26.3 Crimson · ΔE 30.7 Firebrick · ΔE 34.7 Coral · ΔE 37

Nearest named CSS colourRed (#FF0000)ΔE 6.34, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#08E1F5

Analogous#F5086B, #F59308

Triadic#08F51C, #1C08F5

Split complementary#08F592, #086BF5

Tetradic#6AF508, #08E1F5, #9208F5

Tints, shades & saturation

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

Lighter +40%#FDD0CC

Lighter +30%#FCA39A

Lighter +20%#FA7569

Lighter +10%#F84838

Darker −10%#C41606

Darker −20%#921105

Darker −30%#610B03

Darker −40%#2F0502

More saturated +25%#FD1500

Less saturated −25%#D53628

Channel breakdown

R245

G28

Red245 (96.1%)

Green28 (11%)

Blue8 (3.1%)

Hue5.06°

Saturation (HSL)93.68%

Lightness49.61%

Dominant channelRed

Hex per channelR F5 · G 1C · B 08

Keep nerding

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

#F51C08

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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