Recognised as Colour

#E51744

#E51744
Red
Dark
Nearest: Crimson

#E51744 is a red with RGB values 229, 23, 68 and HSL 347°, 82%, 49%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E51744#E51744

HEX#E51744

RGBrgb(229, 23, 68)

RGB (0–1)0.898, 0.0902, 0.2667

RGB percentages89.8%, 9%, 26.7%

HSLhsl(346.9, 81.7%, 49.4%)

HSV / HSBhsv(346.9, 90%, 89.8%)

CMYK0%, 90%, 70.3%, 10.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,013,700

CSS custom property--colour: #E51744;

Brightness & contrast

Relative luminance0.17688WCAG 2.x, 0 is black and 1 is white

Perceived brightness128.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.63:1

Contrast with white4.63:1WCAG normal text: AA

Contrast with black4.54:1WCAG normal text: AA

Greyscale equivalent#464646

Inverted#1AE8BB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605A44no red cones; affects about 1% of men; ΔE 77.5 from the original

Deuteranopia#91833Dno green cones; the most common form, about 1% of men; ΔE 77.6 from the original

Tritanopia#FC002Eno blue cones; rare, and affects men and women equally; ΔE 19.5 from the original

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

Contrast with white, large text4.63:1WCAG large text: AAA

Contrast with black, large text4.54:1WCAG large text: AAA

Named colours

Crimson · ΔE 3.5 Firebrick · ΔE 20.7 Tomato · ΔE 24.9 Brown · ΔE 26.1 Indian red · ΔE 30.1 Dark red · ΔE 31.9

Nearest named CSS colourCrimson (#DC143C)ΔE 3.53, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#17E5B8

Analogous#E517AB, #E55117

Triadic#44E517, #1744E5

Split complementary#17E551, #17ABE5

Tetradic#ABE517, #17E5B8, #5117E5

Tints, shades & saturation

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

Lighter +40%#FACED8

Lighter +30%#F5A0B2

Lighter +20%#F1718D

Lighter +10%#EC4368

Darker −10%#B71236

Darker −20%#880E28

Darker −30%#5A091B

Darker −40%#2C040D

More saturated +25%#FC0037

Less saturated −25%#C63756

Channel breakdown

R229

G23

B68

Red229 (89.8%)

Green23 (9%)

Blue68 (26.7%)

Hue346.89°

Saturation (HSL)81.75%

Lightness49.41%

Dominant channelRed

Hex per channelR E5 · G 17 · B 44

Keep nerding

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

#E51744

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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