Recognised as Colour

#E30405

#E30405
Red
Dark
Nearest: Red

#E30405 is a red with RGB values 227, 4, 5 and HSL 360°, 97%, 45%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E30405#E30405

HEX#E30405

RGBrgb(227, 4, 5)

RGB (0–1)0.8902, 0.0157, 0.0196

RGB percentages89%, 1.6%, 2%

HSLhsl(359.7, 96.5%, 45.3%)

HSV / HSBhsv(359.7, 98.2%, 89%)

CMYK0%, 98.2%, 97.8%, 11%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,877,701

CSS custom property--colour: #E30405;

Brightness & contrast

Relative luminance0.16429WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.9:1

Contrast with white4.9:1WCAG normal text: AA

Contrast with black4.29:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#1CFBFA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605400no red cones; affects about 1% of men; ΔE 79.3 from the original

Deuteranopia#918000no green cones; the most common form, about 1% of men; ΔE 78.3 from the original

Tritanopia#FB000Fno blue cones; rare, and affects men and women equally; ΔE 8.3 from the original

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

Contrast with white, large text4.9:1WCAG large text: AAA

Contrast with black, large text4.29:1WCAG large text: AA

Named colours

Red · ΔE 11.5 Orange red · ΔE 14.4 Tomato · ΔE 25.2 Crimson · ΔE 26.6 Firebrick · ΔE 29.5 Dark red · ΔE 34.9

Nearest named CSS colourRed (#FF0000)ΔE 11.49, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04E3E2

Analogous#E30474, #E37304

Triadic#05E304, #0405E3

Split complementary#04E373, #0474E3

Tetradic#74E304, #04E3E2, #7304E3

Tints, shades & saturation

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

Lighter +40%#FEB5B6

Lighter +30%#FD8384

Lighter +20%#FC5152

Lighter +10%#FB1F20

Darker −10%#B10304

Darker −20%#7F0203

Darker −30%#4D0102

Darker −40%#1B0001

More saturated +25%#E70001

Less saturated −25%#C62122

Channel breakdown

R227

Red227 (89%)

Green4 (1.6%)

Blue5 (2%)

Hue359.73°

Saturation (HSL)96.54%

Lightness45.29%

Dominant channelRed

Hex per channelR E3 · G 04 · B 05

Keep nerding

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

#E30405

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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