Recognised as Colour

#E91E10

#E91E10
Red
Dark
Nearest: Red

#E91E10 is a red with RGB values 233, 30, 16 and HSL 4°, 87%, 49%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E91E10#E91E10

HEX#E91E10

RGBrgb(233, 30, 16)

RGB (0–1)0.9137, 0.1176, 0.0627

RGB percentages91.4%, 11.8%, 6.3%

HSLhsl(3.9, 87.1%, 48.8%)

HSV / HSBhsv(3.9, 93.1%, 91.4%)

CMYK0%, 87.1%, 93.1%, 8.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,277,584

CSS custom property--colour: #E91E10;

Brightness & contrast

Relative luminance0.1829WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.66:1

Contrast with white4.51:1WCAG normal text: AA

Contrast with black4.66:1WCAG normal text: AA

Greyscale equivalent#484848

Inverted#16E1EF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#675B05no red cones; affects about 1% of men; ΔE 77.9 from the original

Deuteranopia#978600no green cones; the most common form, about 1% of men; ΔE 77.4 from the original

Tritanopia#FF0020no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original

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

Contrast with white, large text4.51:1WCAG large text: AAA

Contrast with black, large text4.66:1WCAG large text: AAA

Named colours

Red · ΔE 12.3 Orange red · ΔE 13.3 Tomato · ΔE 22.3 Crimson · ΔE 25.4 Firebrick · ΔE 28.5 Coral · ΔE 33.6

Nearest named CSS colourRed (#FF0000)ΔE 12.32, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#10DBE9

Analogous#E9106F, #E98B10

Triadic#10E91E, #1E10E9

Split complementary#10E98B, #106FE9

Tetradic#6EE910, #10DBE9, #8B10E9

Tints, shades & saturation

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

Lighter +40%#FBCDCA

Lighter +30%#F8A09A

Lighter +20%#F5736A

Lighter +10%#F2463A

Darker −10%#B9180D

Darker −20%#8A1209

Darker −30%#5A0C06

Darker −40%#2A0503

More saturated +25%#F91000

Less saturated −25%#CA392F

Channel breakdown

R233

G30

B16

Red233 (91.4%)

Green30 (11.8%)

Blue16 (6.3%)

Hue3.87°

Saturation (HSL)87.15%

Lightness48.82%

Dominant channelRed

Hex per channelR E9 · G 1E · B 10

Keep nerding

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

#E91E10

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

Nerdulate something else