Colour

#F10500

#F10500
Red
Dark
Nearest: Red

#F10500 is a red with RGB values 241, 5, 0 and HSL 1°, 100%, 47%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#F10500#F10500

HEX#F10500

RGBrgb(241, 5, 0)

RGB (0–1)0.9451, 0.0196, 0

RGB percentages94.5%, 2%, 0%

HSLhsl(1.2, 100%, 47.3%)

HSV / HSBhsv(1.2, 100%, 94.5%)

CMYK0%, 97.9%, 100%, 5.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,795,456

CSS custom property--colour: #F10500;

Brightness & contrast

Relative luminance0.18809WCAG 2.x, 0 is black and 1 is white

Perceived brightness131.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.76:1

Contrast with white4.41:1WCAG normal text: Fail

Contrast with black4.76:1WCAG normal text: AA

Greyscale equivalent#373737

Inverted#0EFAFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#675A00no red cones; affects about 1% of men; ΔE 83 from the original

Deuteranopia#9A8800no green cones; the most common form, about 1% of men; ΔE 81.8 from the original

Tritanopia#FF0010no blue cones; rare, and affects men and women equally; ΔE 4.9 from the original

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

Contrast with white, large text4.41:1WCAG large text: AA

Contrast with black, large text4.76:1WCAG large text: AAA

Named colours

Red · ΔE 5.4 Orange red · ΔE 12 Tomato · ΔE 28.4 Crimson · ΔE 31.5 Firebrick · ΔE 35.6 Coral · ΔE 39.1

Nearest named CSS colourRed (#FF0000)ΔE 5.4, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00ECF1

Analogous#F10074, #F17D00

Triadic#00F105, #0500F1

Split complementary#00F17E, #0073F1

Tetradic#74F100, #00ECF1, #7D00F1

Tints, shades & saturation

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

Lighter +40%#FFBFBE

Lighter +30%#FF8D8B

Lighter +20%#FF5B58

Lighter +10%#FF2A25

Darker −10%#BE0400

Darker −20%#8B0300

Darker −30%#580200

Darker −40%#250100

More saturated +25%#F10500

Less saturated −25%#D3221E

Channel breakdown

R241

Red241 (94.5%)

Green5 (2%)

Blue0 (0%)

Hue1.24°

Saturation (HSL)100%

Lightness47.25%

Dominant channelRed

Hex per channelR F1 · G 05 · B 00

Keep nerding

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#F10500

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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