Recognised as Colour

#E81B13

#E81B13
Red
Dark
Nearest: Red

#E81B13 is a red with RGB values 232, 27, 19 and HSL 2°, 85%, 49%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E81B13#E81B13

HEX#E81B13

RGBrgb(232, 27, 19)

RGB (0–1)0.9098, 0.1059, 0.0745

RGB percentages91%, 10.6%, 7.5%

HSLhsl(2.3, 84.9%, 49.2%)

HSV / HSBhsv(2.3, 91.8%, 91%)

CMYK0%, 88.4%, 91.8%, 9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,211,283

CSS custom property--colour: #E81B13;

Brightness & contrast

Relative luminance0.17987WCAG 2.x, 0 is black and 1 is white

Perceived brightness128.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.6:1

Contrast with white4.57:1WCAG normal text: AA

Contrast with black4.6:1WCAG normal text: AA

Greyscale equivalent#464646

Inverted#17E4EC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#665A0Bno red cones; affects about 1% of men; ΔE 78 from the original

Deuteranopia#968500no green cones; the most common form, about 1% of men; ΔE 77.6 from the original

Tritanopia#FF001Fno blue cones; rare, and affects men and women equally; ΔE 9.3 from the original

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

Contrast with white, large text4.57:1WCAG large text: AAA

Contrast with black, large text4.6:1WCAG large text: AAA

Named colours

Red · ΔE 13.2 Orange red · ΔE 14.6 Tomato · ΔE 22 Crimson · ΔE 24.1 Firebrick · ΔE 27.6 Coral · ΔE 33.5

Nearest named CSS colourRed (#FF0000)ΔE 13.18, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#13E0E8

Analogous#E81375, #E88613

Triadic#13E81B, #1B13E8

Split complementary#13E886, #1375E8

Tetradic#75E813, #13E0E8, #8613E8

Tints, shades & saturation

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

Lighter +40%#FBCECC

Lighter +30%#F7A09D

Lighter +20%#F3736E

Lighter +10%#EF453F

Darker −10%#B9160F

Darker −20%#8A100B

Darker −30%#5B0B07

Darker −40%#2B0504

More saturated +25%#FB0900

Less saturated −25%#C93832

Channel breakdown

R232

G27

B19

Red232 (91%)

Green27 (10.6%)

Blue19 (7.5%)

Hue2.25°

Saturation (HSL)84.86%

Lightness49.22%

Dominant channelRed

Hex per channelR E8 · G 1B · B 13

Keep nerding

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

#E81B13

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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