Colour

#E2001F

#E2001F
Red
Dark
Nearest: Crimson

#E2001F is a red with RGB values 226, 0, 31 and HSL 352°, 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

#E2001F#E2001F

HEX#E2001F

RGBrgb(226, 0, 31)

RGB (0–1)0.8863, 0, 0.1216

RGB percentages88.6%, 0%, 12.2%

HSLhsl(351.8, 100%, 44.3%)

HSV / HSBhsv(351.8, 100%, 88.6%)

CMYK0%, 100%, 86.3%, 11.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,811,167

CSS custom property--colour: #E2001F;

Brightness & contrast

Relative luminance0.16268WCAG 2.x, 0 is black and 1 is white

Perceived brightness124 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.94:1

Contrast with white4.94:1WCAG normal text: AA

Contrast with black4.25:1WCAG normal text: Fail

Greyscale equivalent#323232

Inverted#1DFFE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E541Cno red cones; affects about 1% of men; ΔE 79.6 from the original

Deuteranopia#8F7F0Eno green cones; the most common form, about 1% of men; ΔE 78.9 from the original

Tritanopia#FA0016no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

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

Contrast with white, large text4.94:1WCAG large text: AAA

Contrast with black, large text4.25:1WCAG large text: AA

Named colours

Crimson · ΔE 16.9 Red · ΔE 19 Tomato · ΔE 21.9 Orange red · ΔE 22 Firebrick · ΔE 23.2 Dark red · ΔE 30.9

Nearest named CSS colourCrimson (#DC143C)ΔE 16.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E2C3

Analogous#E20090, #E25200

Triadic#1FE200, #001FE2

Split complementary#00E252, #0090E2

Tetradic#90E200, #00E2C3, #5200E2

Tints, shades & saturation

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

Lighter +40%#FFAFBA

Lighter +30%#FF7C8E

Lighter +20%#FF4962

Lighter +10%#FF1636

Darker −10%#AF0018

Darker −20%#7C0011

Darker −30%#49000A

Darker −40%#160003

More saturated +25%#E2001F

Less saturated −25%#C61C34

Channel breakdown

R226

B31

Red226 (88.6%)

Green0 (0%)

Blue31 (12.2%)

Hue351.77°

Saturation (HSL)100%

Lightness44.31%

Dominant channelRed

Hex per channelR E2 · G 00 · B 1F

Keep nerding

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#E2001F

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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