Recognised as Colour

#D33423

#D33423
Red
Dark
Nearest: Firebrick

#D33423 is a red with RGB values 211, 52, 35 and HSL 6°, 72%, 48%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#D33423#D33423

HEX#D33423

RGBrgb(211, 52, 35)

RGB (0–1)0.8275, 0.2039, 0.1373

RGB percentages82.7%, 20.4%, 13.7%

HSLhsl(5.8, 71.5%, 48.2%)

HSV / HSBhsv(5.8, 83.4%, 82.7%)

CMYK0%, 75.4%, 83.4%, 17.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,841,443

CSS custom property--colour: #D33423;

Brightness & contrast

Relative luminance0.16426WCAG 2.x, 0 is black and 1 is white

Perceived brightness122.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.9:1

Contrast with white4.9:1WCAG normal text: AA

Contrast with black4.29:1WCAG normal text: Fail

Greyscale equivalent#555555

Inverted#2CCBDC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#665A1Fno red cones; affects about 1% of men; ΔE 65.1 from the original

Deuteranopia#8D7D1Ano green cones; the most common form, about 1% of men; ΔE 65.3 from the original

Tritanopia#E90032no blue cones; rare, and affects men and women equally; ΔE 16.1 from the original

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

Contrast with white, large text4.9:1WCAG large text: AAA

Contrast with black, large text4.29:1WCAG large text: AA

Named colours

Firebrick · ΔE 13.6 Tomato · ΔE 14.9 Crimson · ΔE 17.4 Brown · ΔE 22.3 Dark red · ΔE 22.4 Coral · ΔE 24.8

Nearest named CSS colourFirebrick (#B22222)ΔE 13.64, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#23C2D3

Analogous#D3236A, #D38C23

Triadic#23D334, #3423D3

Split complementary#23D38C, #236AD3

Tetradic#6AD323, #23C2D3, #8C23D3

Tints, shades & saturation

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

Lighter +40%#F6D0CC

Lighter +30%#EFA7A0

Lighter +20%#E87F74

Lighter +10%#E15748

Darker −10%#A7291C

Darker −20%#7C1E14

Darker −30%#50140D

Darker −40%#240906

More saturated +25%#F21B04

Less saturated −25%#B44D42

Channel breakdown

R211

G52

B35

Red211 (82.7%)

Green52 (20.4%)

Blue35 (13.7%)

Hue5.8°

Saturation (HSL)71.54%

Lightness48.24%

Dominant channelRed

Hex per channelR D3 · G 34 · B 23

Keep nerding

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

#D33423

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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