Recognised as Colour

#FD3307

#FD3307
Red
Dark
Nearest: Orange red

#FD3307 is a red with RGB values 253, 51, 7 and HSL 11°, 98%, 51%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FD3307#FD3307

HEX#FD3307

RGBrgb(253, 51, 7)

RGB (0–1)0.9922, 0.2, 0.0275

RGB percentages99.2%, 20%, 2.7%

HSLhsl(10.7, 98.4%, 51%)

HSV / HSBhsv(10.7, 97.2%, 99.2%)

CMYK0%, 79.8%, 97.2%, 0.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,593,671

CSS custom property--colour: #FD3307;

Brightness & contrast

Relative luminance0.23266WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.65:1

Contrast with white3.71:1WCAG normal text: Fail

Contrast with black5.65:1WCAG normal text: AA

Greyscale equivalent#5B5B5B

Inverted#02CCF8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#776800no red cones; affects about 1% of men; ΔE 78.8 from the original

Deuteranopia#A79400no green cones; the most common form, about 1% of men; ΔE 78.4 from the original

Tritanopia#FF002Fno blue cones; rare, and affects men and women equally; ΔE 18.3 from the original

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

Contrast with white, large text3.71:1WCAG large text: AA

Contrast with black, large text5.65:1WCAG large text: AAA

Named colours

Orange red · ΔE 5.9 Red · ΔE 8 Tomato · ΔE 25.5 Crimson · ΔE 33.7 Coral · ΔE 35.1 Chocolate · ΔE 36.7

Nearest named CSS colourOrange red (#FF4500)ΔE 5.89, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#07D1FD

Analogous#FD0756, #FDAE07

Triadic#07FD33, #3307FD

Split complementary#07FDAE, #0756FD

Tetradic#56FD07, #07D1FD, #AE07FD

Tints, shades & saturation

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

Lighter +40%#FFD9D1

Lighter +30%#FEB09F

Lighter +20%#FE866C

Lighter +10%#FD5D3A

Darker −10%#CF2602

Darker −20%#9D1D01

Darker −30%#6A1401

Darker −40%#380A00

More saturated +25%#FF3205

Less saturated −25%#DE4726

Channel breakdown

R253

G51

Red253 (99.2%)

Green51 (20%)

Blue7 (2.7%)

Hue10.73°

Saturation (HSL)98.4%

Lightness50.98%

Dominant channelRed

Hex per channelR FD · G 33 · B 07

Keep nerding

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

#FD3307

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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