Colour

#D31E1E

#D31E1E
Red
Dark
Nearest: Crimson

#D31E1E is a red with RGB values 211, 30, 30 and HSL 0°, 75%, 47%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D31E1E#D31E1E

HEX#D31E1E

RGBrgb(211, 30, 30)

RGB (0–1)0.8275, 0.1176, 0.1176

RGB percentages82.7%, 11.8%, 11.8%

HSLhsl(0, 75.1%, 47.3%)

HSV / HSBhsv(0, 85.8%, 82.7%)

CMYK0%, 85.8%, 85.8%, 17.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,835,806

CSS custom property--colour: #D31E1E;

Brightness & contrast

Relative luminance0.14871WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.28:1

Contrast with white5.28:1WCAG normal text: AA

Contrast with black3.97:1WCAG normal text: Fail

Greyscale equivalent#444444

Inverted#2CE1E1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5D531Ano red cones; affects about 1% of men; ΔE 71.6 from the original

Deuteranopia#887911no green cones; the most common form, about 1% of men; ΔE 71.3 from the original

Tritanopia#E90022no blue cones; rare, and affects men and women equally; ΔE 10.1 from the original

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

Contrast with white, large text5.28:1WCAG large text: AAA

Contrast with black, large text3.97:1WCAG large text: AA

Named colours

Crimson · ΔE 15.3 Firebrick · ΔE 15.8 Tomato · ΔE 18.7 Dark red · ΔE 23.9 Orange red · ΔE 24.2 Red · ΔE 25

Nearest named CSS colourCrimson (#DC143C)ΔE 15.31, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1ED3D3

Analogous#D31E78, #D3781E

Triadic#1ED31E, #1E1ED3

Split complementary#1ED378, #1E78D3

Tetradic#78D31E, #1ED3D3, #781ED3

Tints, shades & saturation

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

Lighter +40%#F7C6C6

Lighter +30%#F19999

Lighter +20%#EA6D6D

Lighter +10%#E44040

Darker −10%#A61818

Darker −20%#7A1111

Darker −30%#4D0B0B

Darker −40%#200505

More saturated +25%#F10000

Less saturated −25%#B53C3C

Channel breakdown

R211

G30

B30

Red211 (82.7%)

Green30 (11.8%)

Blue30 (11.8%)

Hue0°

Saturation (HSL)75.1%

Lightness47.25%

Dominant channelRed

Hex per channelR D3 · G 1E · B 1E

Keep nerding

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

#D31E1E

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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