Recognised as Colour

#E4252B

#E4252B
Red
Dark
Nearest: Crimson

#E4252B is a red with RGB values 228, 37, 43 and HSL 358°, 78%, 52%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E4252B#E4252B

HEX#E4252B

RGBrgb(228, 37, 43)

RGB (0–1)0.8941, 0.1451, 0.1686

RGB percentages89.4%, 14.5%, 16.9%

HSLhsl(358.1, 78%, 52%)

HSV / HSBhsv(358.1, 83.8%, 89.4%)

CMYK0%, 83.8%, 81.1%, 10.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,951,723

CSS custom property--colour: #E4252B;

Brightness & contrast

Relative luminance0.17992WCAG 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#4E4E4E

Inverted#1BDAD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#665B28no red cones; affects about 1% of men; ΔE 74.7 from the original

Deuteranopia#948421no green cones; the most common form, about 1% of men; ΔE 74.8 from the original

Tritanopia#FB002Bno blue cones; rare, and affects men and women equally; ΔE 11.6 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

Crimson · ΔE 13.1 Tomato · ΔE 17.2 Firebrick · ΔE 19.2 Red · ΔE 23.7 Orange red · ΔE 24.1 Brown · ΔE 28

Nearest named CSS colourCrimson (#DC143C)ΔE 13.06, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#25E4DE

Analogous#E4258B, #E47E25

Triadic#2BE425, #252BE4

Split complementary#25E47E, #258BE4

Tetradic#8BE425, #25E4DE, #7E25E4

Tints, shades & saturation

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

Lighter +40%#FADBDC

Lighter +30%#F5ADAF

Lighter +20%#EF8083

Lighter +10%#EA5257

Darker −10%#BE181D

Darker −20%#911216

Darker −30%#640C0F

Darker −40%#360708

More saturated +25%#FF0A12

Less saturated −25%#C54448

Channel breakdown

R228

G37

B43

Red228 (89.4%)

Green37 (14.5%)

Blue43 (16.9%)

Hue358.12°

Saturation (HSL)77.96%

Lightness51.96%

Dominant channelRed

Hex per channelR E4 · G 25 · B 2B

Keep nerding

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

#E4252B

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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