Colour

#E51D02

#E51D02
Red
Dark
Nearest: Orange red

#E51D02 is a red with RGB values 229, 29, 2 and HSL 7°, 98%, 45%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#E51D02#E51D02

HEX#E51D02

RGBrgb(229, 29, 2)

RGB (0–1)0.898, 0.1137, 0.0078

RGB percentages89.8%, 11.4%, 0.8%

HSLhsl(7.1, 98.3%, 45.3%)

HSV / HSBhsv(7.1, 99.1%, 89.8%)

CMYK0%, 87.3%, 99.1%, 10.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,015,170

CSS custom property--colour: #E51D02;

Brightness & contrast

Relative luminance0.17541WCAG 2.x, 0 is black and 1 is white

Perceived brightness127.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.66:1

Contrast with white4.66:1WCAG normal text: AA

Contrast with black4.51:1WCAG normal text: AA

Greyscale equivalent#464646

Inverted#1AE2FD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#665900no red cones; affects about 1% of men; ΔE 76.8 from the original

Deuteranopia#948300no green cones; the most common form, about 1% of men; ΔE 76.1 from the original

Tritanopia#FD001Dno blue cones; rare, and affects men and women equally; ΔE 10.7 from the original

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

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

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

Named colours

Orange red · ΔE 11.6 Red · ΔE 11.7 Tomato · ΔE 24 Crimson · ΔE 28.3 Firebrick · ΔE 30 Coral · ΔE 34.4

Nearest named CSS colourOrange red (#FF4500)ΔE 11.59, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#02CAE5

Analogous#E50259, #E58E02

Triadic#02E51D, #1D02E5

Split complementary#02E58E, #0259E5

Tetradic#59E502, #02CAE5, #8E02E5

Tints, shades & saturation

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

Lighter +40%#FEBDB5

Lighter +30%#FE9182

Lighter +20%#FD6450

Lighter +10%#FD381D

Darker −10%#B21702

Darker −20%#801001

Darker −30%#4D0A01

Darker −40%#1B0300

More saturated +25%#E71B00

Less saturated −25%#C8331F

Channel breakdown

R229

G29

Red229 (89.8%)

Green29 (11.4%)

Blue2 (0.8%)

Hue7.14°

Saturation (HSL)98.27%

Lightness45.29%

Dominant channelRed

Hex per channelR E5 · G 1D · B 02

Keep nerding

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

#E51D02

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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