Colour

#E52A10

#E52A10
Red
Dark
Nearest: Orange red

#E52A10 is a red with RGB values 229, 42, 16 and HSL 7°, 87%, 48%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#E52A10#E52A10

HEX#E52A10

RGBrgb(229, 42, 16)

RGB (0–1)0.898, 0.1647, 0.0627

RGB percentages89.8%, 16.5%, 6.3%

HSLhsl(7.3, 86.9%, 48%)

HSV / HSBhsv(7.3, 93%, 89.8%)

CMYK0%, 81.7%, 93%, 10.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,018,512

CSS custom property--colour: #E52A10;

Brightness & contrast

Relative luminance0.18351WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.67:1

Contrast with white4.5:1WCAG normal text: Fail

Contrast with black4.67:1WCAG normal text: AA

Greyscale equivalent#505050

Inverted#1AD5EF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#695D04no red cones; affects about 1% of men; ΔE 74.3 from the original

Deuteranopia#968500no green cones; the most common form, about 1% of men; ΔE 73.7 from the original

Tritanopia#FD0028no blue cones; rare, and affects men and women equally; ΔE 13.6 from the original

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

Contrast with white, large text4.5:1WCAG large text: AA

Contrast with black, large text4.67:1WCAG large text: AAA

Named colours

Orange red · ΔE 13 Red · ΔE 15.2 Tomato · ΔE 20.1 Crimson · ΔE 25.2 Firebrick · ΔE 26.5 Coral · ΔE 30.7

Nearest named CSS colourOrange red (#FF4500)ΔE 12.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#10CBE5

Analogous#E51060, #E59510

Triadic#10E52A, #2A10E5

Split complementary#10E595, #1061E5

Tetradic#60E510, #10CBE5, #9510E5

Tints, shades & saturation

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

Lighter +40%#FBCCC6

Lighter +30%#F8A296

Lighter +20%#F47867

Lighter +10%#F14E37

Darker −10%#B5210D

Darker −20%#861909

Darker −30%#561006

Darker −40%#260703

More saturated +25%#F51E00

Less saturated −25%#C6412F

Channel breakdown

R229

G42

B16

Red229 (89.8%)

Green42 (16.5%)

Blue16 (6.3%)

Hue7.32°

Saturation (HSL)86.94%

Lightness48.04%

Dominant channelRed

Hex per channelR E5 · G 2A · B 10

Keep nerding

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#E52A10

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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