Recognised as Colour

#ED0037

#ED0037
Red
Dark
Nearest: Crimson

#ED0037 is a red with RGB values 237, 0, 55 and HSL 346°, 100%, 46%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#ED0037#ED0037

HEX#ED0037

RGBrgb(237, 0, 55)

RGB (0–1)0.9294, 0, 0.2157

RGB percentages92.9%, 0%, 21.6%

HSLhsl(346.1, 100%, 46.5%)

HSV / HSBhsv(346.1, 100%, 92.9%)

CMYK0%, 100%, 76.8%, 7.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,532,087

CSS custom property--colour: #ED0037;

Brightness & contrast

Relative luminance0.1828WCAG 2.x, 0 is black and 1 is white

Perceived brightness130.9 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#363636

Inverted#12FFC8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#625936no red cones; affects about 1% of men; ΔE 81.8 from the original

Deuteranopia#95862Eno green cones; the most common form, about 1% of men; ΔE 82.1 from the original

Tritanopia#FF0022no blue cones; rare, and affects men and women equally; ΔE 16.5 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

Crimson · ΔE 9.5 Tomato · ΔE 23.3 Firebrick · ΔE 23.6 Red · ΔE 27 Orange red · ΔE 30.7 Brown · ΔE 31.3

Nearest named CSS colourCrimson (#DC143C)ΔE 9.52, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00EDB6

Analogous#ED00AE, #ED3F00

Triadic#37ED00, #0037ED

Split complementary#00ED3F, #00AEED

Tetradic#AEED00, #00EDB6, #3F00ED

Tints, shades & saturation

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

Lighter +40%#FFBACA

Lighter +30%#FF87A3

Lighter +20%#FF547C

Lighter +10%#FF2155

Darker −10%#BA002B

Darker −20%#87001F

Darker −30%#540013

Darker −40%#210008

More saturated +25%#ED0037

Less saturated −25%#CF1E47

Channel breakdown

R237

B55

Red237 (92.9%)

Green0 (0%)

Blue55 (21.6%)

Hue346.08°

Saturation (HSL)100%

Lightness46.47%

Dominant channelRed

Hex per channelR ED · G 00 · B 37

Keep nerding

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

#ED0037

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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