Colour

#F43100

#F43100
Red
Dark
Nearest: Orange red

#F43100 is a red with RGB values 244, 49, 0 and HSL 12°, 100%, 48%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#F43100#F43100

HEX#F43100

RGBrgb(244, 49, 0)

RGB (0–1)0.9569, 0.1922, 0

RGB percentages95.7%, 19.2%, 0%

HSLhsl(12, 100%, 47.8%)

HSV / HSBhsv(12, 100%, 95.7%)

CMYK0%, 79.9%, 100%, 4.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,003,328

CSS custom property--colour: #F43100;

Brightness & contrast

Relative luminance0.2143WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.29:1

Contrast with white3.97:1WCAG normal text: Fail

Contrast with black5.29:1WCAG normal text: AA

Greyscale equivalent#575757

Inverted#0BCEFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#736400no red cones; affects about 1% of men; ΔE 76.6 from the original

Deuteranopia#A18F00no green cones; the most common form, about 1% of men; ΔE 76.4 from the original

Tritanopia#FF002Cno blue cones; rare, and affects men and women equally; ΔE 17.7 from the original

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

Contrast with white, large text3.97:1WCAG large text: AA

Contrast with black, large text5.29:1WCAG large text: AAA

Named colours

Orange red · ΔE 5.8 Red · ΔE 9.7 Tomato · ΔE 24.8 Crimson · ΔE 33 Coral · ΔE 34.1 Chocolate · ΔE 34.7

Nearest named CSS colourOrange red (#FF4500)ΔE 5.78, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C3F4

Analogous#F40049, #F4AB00

Triadic#00F431, #3100F4

Split complementary#00F4AB, #0049F4

Tetradic#49F400, #00C3F4, #AB00F4

Tints, shades & saturation

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

Lighter +40%#FFCDC1

Lighter +30%#FFA58E

Lighter +20%#FF7C5B

Lighter +10%#FF5328

Darker −10%#C12700

Darker −20%#8E1D00

Darker −30%#5B1200

Darker −40%#280800

More saturated +25%#F43100

Less saturated −25%#D6431F

Channel breakdown

R244

G49

Red244 (95.7%)

Green49 (19.2%)

Blue0 (0%)

Hue12.05°

Saturation (HSL)100%

Lightness47.84%

Dominant channelRed

Hex per channelR F4 · G 31 · B 00

Keep nerding

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#F43100

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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