Colour

#E1021B

#E1021B
Red
Dark
Nearest: Red

#E1021B is a red with RGB values 225, 2, 27 and HSL 353°, 98%, 45%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E1021B#E1021B

HEX#E1021B

RGBrgb(225, 2, 27)

RGB (0–1)0.8824, 0.0078, 0.1059

RGB percentages88.2%, 0.8%, 10.6%

HSLhsl(353.3, 98.2%, 44.5%)

HSV / HSBhsv(353.3, 99.1%, 88.2%)

CMYK0%, 99.1%, 88%, 11.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,746,139

CSS custom property--colour: #E1021B;

Brightness & contrast

Relative luminance0.1613WCAG 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 4.97:1

Contrast with white4.97:1WCAG normal text: AA

Contrast with black4.23:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#1EFDE4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E5417no red cones; affects about 1% of men; ΔE 79.3 from the original

Deuteranopia#8F7F06no green cones; the most common form, about 1% of men; ΔE 78.6 from the original

Tritanopia#F90015no blue cones; rare, and affects men and women equally; ΔE 11.2 from the original

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

Contrast with white, large text4.97:1WCAG large text: AAA

Contrast with black, large text4.23:1WCAG large text: AA

Named colours

Red · ΔE 17.9 Crimson · ΔE 18.5 Orange red · ΔE 20.6 Tomato · ΔE 22.1 Firebrick · ΔE 23.7 Dark red · ΔE 31

Nearest named CSS colourRed (#FF0000)ΔE 17.85, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#02E1C8

Analogous#E1028A, #E15902

Triadic#1BE102, #021BE1

Split complementary#02E158, #028AE1

Tetradic#8BE102, #02E1C8, #5902E1

Tints, shades & saturation

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

Lighter +40%#FEB1B9

Lighter +30%#FE7E8C

Lighter +20%#FD4C60

Lighter +10%#FD1933

Darker −10%#AE0215

Darker −20%#7C010F

Darker −30%#490109

Darker −40%#170003

More saturated +25%#E30019

Less saturated −25%#C51E31

Channel breakdown

R225

B27

Red225 (88.2%)

Green2 (0.8%)

Blue27 (10.6%)

Hue353.27°

Saturation (HSL)98.24%

Lightness44.51%

Dominant channelRed

Hex per channelR E1 · G 02 · B 1B

Keep nerding

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

#E1021B

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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