Colour

#E1003A

#E1003A
Red
Dark
Nearest: Crimson

#E1003A is a red with RGB values 225, 0, 58 and HSL 345°, 100%, 44%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E1003A#E1003A

HEX#E1003A

RGBrgb(225, 0, 58)

RGB (0–1)0.8824, 0, 0.2275

RGB percentages88.2%, 0%, 22.7%

HSLhsl(344.5, 100%, 44.1%)

HSV / HSBhsv(344.5, 100%, 88.2%)

CMYK0%, 100%, 74.2%, 11.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,745,658

CSS custom property--colour: #E1003A;

Brightness & contrast

Relative luminance0.16313WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.93:1

Contrast with white4.93:1WCAG normal text: AA

Contrast with black4.26:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#1EFFC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5539no red cones; affects about 1% of men; ΔE 78.8 from the original

Deuteranopia#8D7F32no green cones; the most common form, about 1% of men; ΔE 78.9 from the original

Tritanopia#F80023no blue cones; rare, and affects men and women equally; ΔE 19.8 from the original

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

Contrast with white, large text4.93:1WCAG large text: AAA

Contrast with black, large text4.26:1WCAG large text: AA

Named colours

Crimson · ΔE 3.6 Firebrick · ΔE 20 Tomato · ΔE 24.5 Brown · ΔE 26.6 Dark red · ΔE 30.5 Indian red · ΔE 32.6

Nearest named CSS colourCrimson (#DC143C)ΔE 3.57, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E1A7

Analogous#E100AB, #E13700

Triadic#3AE100, #003AE1

Split complementary#00E137, #00ABE1

Tetradic#AAE100, #00E1A7, #3600E1

Tints, shades & saturation

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

Lighter +40%#FFAEC3

Lighter +30%#FF7B9D

Lighter +20%#FF4877

Lighter +10%#FF1551

Darker −10%#AE002D

Darker −20%#7B0020

Darker −30%#480013

Darker −40%#150005

More saturated +25%#E1003A

Less saturated −25%#C51C48

Channel breakdown

R225

B58

Red225 (88.2%)

Green0 (0%)

Blue58 (22.7%)

Hue344.53°

Saturation (HSL)100%

Lightness44.12%

Dominant channelRed

Hex per channelR E1 · G 00 · B 3A

Keep nerding

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

#E1003A

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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