Colour

#E4173B

#E4173B
Red
Dark
Nearest: Crimson

#E4173B is a red with RGB values 228, 23, 59 and HSL 349°, 82%, 49%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E4173B#E4173B

HEX#E4173B

RGBrgb(228, 23, 59)

RGB (0–1)0.8941, 0.0902, 0.2314

RGB percentages89.4%, 9%, 23.1%

HSLhsl(349.5, 81.7%, 49.2%)

HSV / HSBhsv(349.5, 89.9%, 89.4%)

CMYK0%, 89.9%, 74.1%, 10.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,948,155

CSS custom property--colour: #E4173B;

Brightness & contrast

Relative luminance0.17423WCAG 2.x, 0 is black and 1 is white

Perceived brightness127.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.68:1

Contrast with white4.68:1WCAG normal text: AA

Contrast with black4.48:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#1BE8C4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#60593Ano red cones; affects about 1% of men; ΔE 77.7 from the original

Deuteranopia#918333no green cones; the most common form, about 1% of men; ΔE 77.8 from the original

Tritanopia#FB002Ano blue cones; rare, and affects men and women equally; ΔE 16.9 from the original

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

Contrast with white, large text4.68:1WCAG large text: AAA

Contrast with black, large text4.48:1WCAG large text: AA

Named colours

Crimson · ΔE 3.8 Firebrick · ΔE 19.2 Tomato · ΔE 22.1 Brown · ΔE 26.1 Dark red · ΔE 30.2 Indian red · ΔE 31.6

Nearest named CSS colourCrimson (#DC143C)ΔE 3.84, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#17E4C0

Analogous#E417A1, #E45917

Triadic#3BE417, #173BE4

Split complementary#17E459, #17A1E4

Tetradic#A2E417, #17E4C0, #5A17E4

Tints, shades & saturation

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

Lighter +40%#FACDD5

Lighter +30%#F59FAE

Lighter +20%#F17087

Lighter +10%#EC4260

Darker −10%#B6122F

Darker −20%#870E23

Darker −30%#590917

Darker −40%#2B040B

More saturated +25%#FB002C

Less saturated −25%#C5364F

Channel breakdown

R228

G23

B59

Red228 (89.4%)

Green23 (9%)

Blue59 (23.1%)

Hue349.46°

Saturation (HSL)81.67%

Lightness49.22%

Dominant channelRed

Hex per channelR E4 · G 17 · B 3B

Keep nerding

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

#E4173B

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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