Recognised as Colour

#EF3604

#EF3604
Red
Dark
Nearest: Orange red

#EF3604 is a red with RGB values 239, 54, 4 and HSL 13°, 97%, 48%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#EF3604#EF3604

HEX#EF3604

RGBrgb(239, 54, 4)

RGB (0–1)0.9373, 0.2118, 0.0157

RGB percentages93.7%, 21.2%, 1.6%

HSLhsl(12.8, 96.7%, 47.6%)

HSV / HSBhsv(12.8, 98.3%, 93.7%)

CMYK0%, 77.4%, 98.3%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,676,932

CSS custom property--colour: #EF3604;

Brightness & contrast

Relative luminance0.20998WCAG 2.x, 0 is black and 1 is white

Perceived brightness137.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.2:1

Contrast with white4.04:1WCAG normal text: Fail

Contrast with black5.2:1WCAG normal text: AA

Greyscale equivalent#5A5A5A

Inverted#10C9FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#736400no red cones; affects about 1% of men; ΔE 73.5 from the original

Deuteranopia#9F8D00no green cones; the most common form, about 1% of men; ΔE 73.5 from the original

Tritanopia#FF0030no blue cones; rare, and affects men and women equally; ΔE 19.7 from the original

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

Contrast with white, large text4.04:1WCAG large text: AA

Contrast with black, large text5.2:1WCAG large text: AAA

Named colours

Orange red · ΔE 6.6 Red · ΔE 12.8 Tomato · ΔE 22.3 Crimson · ΔE 31.4 Coral · ΔE 31.4 Chocolate · ΔE 31.7

Nearest named CSS colourOrange red (#FF4500)ΔE 6.63, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04BDEF

Analogous#EF0448, #EFAB04

Triadic#04EF36, #3604EF

Split complementary#04EFAB, #0448EF

Tetradic#48EF04, #04BDEF, #AB04EF

Tints, shades & saturation

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

Lighter +40%#FECEC1

Lighter +30%#FDA68F

Lighter +20%#FC7F5D

Lighter +10%#FB572B

Darker −10%#BD2B03

Darker −20%#8B1F02

Darker −30%#591401

Darker −40%#260901

More saturated +25%#F33400

Less saturated −25%#D14722

Channel breakdown

R239

G54

Red239 (93.7%)

Green54 (21.2%)

Blue4 (1.6%)

Hue12.77°

Saturation (HSL)96.71%

Lightness47.65%

Dominant channelRed

Hex per channelR EF · G 36 · B 04

Keep nerding

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

#EF3604

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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