Colour

#FF4103

#FF4103
Red
Dark
Nearest: Orange red

#FF4103 is a red with RGB values 255, 65, 3 and HSL 15°, 100%, 51%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF4103#FF4103

HEX#FF4103

RGBrgb(255, 65, 3)

RGB (0–1)1, 0.2549, 0.0118

RGB percentages100%, 25.5%, 1.2%

HSLhsl(14.8, 100%, 50.6%)

HSV / HSBhsv(14.8, 98.8%, 100%)

CMYK0%, 74.5%, 98.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,728,323

CSS custom property--colour: #FF4103;

Brightness & contrast

Relative luminance0.25047WCAG 2.x, 0 is black and 1 is white

Perceived brightness148.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.01:1

Contrast with white3.49:1WCAG normal text: Fail

Contrast with black6.01:1WCAG normal text: AA

Greyscale equivalent#656565

Inverted#00BEFC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7E6E00no red cones; affects about 1% of men; ΔE 75.4 from the original

Deuteranopia#AC9800no green cones; the most common form, about 1% of men; ΔE 74.9 from the original

Tritanopia#FF0039no blue cones; rare, and affects men and women equally; ΔE 26.6 from the original

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

Contrast with white, large text3.49:1WCAG large text: AA

Contrast with black, large text6.01:1WCAG large text: AAA

Named colours

Orange red · ΔE 1.6 Red · ΔE 11.7 Tomato · ΔE 25 Coral · ΔE 33 Chocolate · ΔE 34 Dark orange · ΔE 35.3

Nearest named CSS colourOrange red (#FF4500)ΔE 1.61, below the just-noticeable difference

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03C1FF

Analogous#FF0343, #FFBF03

Triadic#03FF41, #4103FF

Split complementary#03FFBF, #0343FF

Tetradic#43FF03, #03C1FF, #BF03FF

Tints, shades & saturation

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

Lighter +40%#FFDBCF

Lighter +30%#FFB49C

Lighter +20%#FF8E69

Lighter +10%#FF6736

Darker −10%#CF3300

Darker −20%#9C2600

Darker −30%#691A00

Darker −40%#360D00

More saturated +25%#FF4103

Less saturated −25%#E05122

Channel breakdown

R255

G65

Red255 (100%)

Green65 (25.5%)

Blue3 (1.2%)

Hue14.76°

Saturation (HSL)100%

Lightness50.59%

Dominant channelRed

Hex per channelR FF · G 41 · B 03

Keep nerding

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

#FF4103

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

Nerdulate something else