Colour

#E1001D

#E1001D
Red
Dark
Nearest: Crimson

#E1001D is a red with RGB values 225, 0, 29 and HSL 352°, 100%, 44%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E1001D#E1001D

HEX#E1001D

RGBrgb(225, 0, 29)

RGB (0–1)0.8824, 0, 0.1137

RGB percentages88.2%, 0%, 11.4%

HSLhsl(352.3, 100%, 44.1%)

HSV / HSBhsv(352.3, 100%, 88.2%)

CMYK0%, 100%, 87.1%, 11.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,745,629

CSS custom property--colour: #E1001D;

Brightness & contrast

Relative luminance0.16096WCAG 2.x, 0 is black and 1 is white

Perceived brightness123.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.98:1

Contrast with white4.98:1WCAG normal text: AA

Contrast with black4.22:1WCAG normal text: Fail

Greyscale equivalent#323232

Inverted#1EFFE2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E5319no red cones; affects about 1% of men; ΔE 78.9 from the original

Deuteranopia#8F7F0Ano green cones; the most common form, about 1% of men; ΔE 78.8 from the original

Tritanopia#F90015no blue cones; rare, and affects men and women equally; ΔE 11.8 from the original

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

Contrast with white, large text4.98:1WCAG large text: AAA

Contrast with black, large text4.22:1WCAG large text: AA

Named colours

Crimson · ΔE 17.6 Red · ΔE 18.6 Orange red · ΔE 21.4 Tomato · ΔE 22 Firebrick · ΔE 23.3 Dark red · ΔE 30.8

Nearest named CSS colourCrimson (#DC143C)ΔE 17.59, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E1C4

Analogous#E1008E, #E15300

Triadic#1DE100, #001DE1

Split complementary#00E153, #008EE1

Tetradic#8EE100, #00E1C4, #5300E1

Tints, shades & saturation

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

Lighter +40%#FFAEB8

Lighter +30%#FF7B8C

Lighter +20%#FF4860

Lighter +10%#FF1533

Darker −10%#AE0016

Darker −20%#7B0010

Darker −30%#480009

Darker −40%#150003

More saturated +25%#E1001D

Less saturated −25%#C51C32

Channel breakdown

R225

B29

Red225 (88.2%)

Green0 (0%)

Blue29 (11.4%)

Hue352.27°

Saturation (HSL)100%

Lightness44.12%

Dominant channelRed

Hex per channelR E1 · G 00 · B 1D

Keep nerding

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

#E1001D

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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