Colour

#E7001D

#E7001D
Red
Dark
Nearest: Red

#E7001D is a red with RGB values 231, 0, 29 and HSL 352°, 100%, 45%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E7001D#E7001D

HEX#E7001D

RGBrgb(231, 0, 29)

RGB (0–1)0.9059, 0, 0.1137

RGB percentages90.6%, 0%, 11.4%

HSLhsl(352.5, 100%, 45.3%)

HSV / HSBhsv(352.5, 100%, 90.6%)

CMYK0%, 100%, 87.4%, 9.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,138,845

CSS custom property--colour: #E7001D;

Brightness & contrast

Relative luminance0.17078WCAG 2.x, 0 is black and 1 is white

Perceived brightness126.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.76:1

Contrast with white4.76:1WCAG normal text: AA

Contrast with black4.42:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#18FFE2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615619no red cones; affects about 1% of men; ΔE 80.6 from the original

Deuteranopia#938208no green cones; the most common form, about 1% of men; ΔE 80 from the original

Tritanopia#FF0015no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

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

Contrast with white, large text4.76:1WCAG large text: AAA

Contrast with black, large text4.42:1WCAG large text: AA

Named colours

Red · ΔE 16.4 Crimson · ΔE 19.4 Orange red · ΔE 20 Tomato · ΔE 22.6 Firebrick · ΔE 25.7 Dark red · ΔE 33.1

Nearest named CSS colourRed (#FF0000)ΔE 16.37, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E7CA

Analogous#E70090, #E75600

Triadic#1DE700, #001DE7

Split complementary#00E756, #0091E7

Tetradic#91E700, #00E7CA, #5700E7

Tints, shades & saturation

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

Lighter +40%#FFB4BD

Lighter +30%#FF8191

Lighter +20%#FF4E64

Lighter +10%#FF1B38

Darker −10%#B40017

Darker −20%#810010

Darker −30%#4E000A

Darker −40%#1B0003

More saturated +25%#E7001D

Less saturated −25%#CA1D33

Channel breakdown

R231

B29

Red231 (90.6%)

Green0 (0%)

Blue29 (11.4%)

Hue352.47°

Saturation (HSL)100%

Lightness45.29%

Dominant channelRed

Hex per channelR E7 · G 00 · B 1D

Keep nerding

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

#E7001D

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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