Colour

#D3231E

#D3231E
Red
Dark
Nearest: Firebrick

#D3231E is a red with RGB values 211, 35, 30 and HSL 2°, 75%, 47%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#D3231E#D3231E

HEX#D3231E

RGBrgb(211, 35, 30)

RGB (0–1)0.8275, 0.1373, 0.1176

RGB percentages82.7%, 13.7%, 11.8%

HSLhsl(1.7, 75.1%, 47.3%)

HSV / HSBhsv(1.7, 85.8%, 82.7%)

CMYK0%, 83.4%, 85.8%, 17.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,837,086

CSS custom property--colour: #D3231E;

Brightness & contrast

Relative luminance0.15145WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.21:1

Contrast with white5.21:1WCAG normal text: AA

Contrast with black4.03:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#2CDCE1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5F541Ano red cones; affects about 1% of men; ΔE 70.2 from the original

Deuteranopia#897A11no green cones; the most common form, about 1% of men; ΔE 70.4 from the original

Tritanopia#E90025no blue cones; rare, and affects men and women equally; ΔE 10.8 from the original

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

Contrast with white, large text5.21:1WCAG large text: AAA

Contrast with black, large text4.03:1WCAG large text: AA

Named colours

Firebrick · ΔE 15.5 Crimson · ΔE 15.9 Tomato · ΔE 18 Dark red · ΔE 23.7 Orange red · ΔE 23.9 Brown · ΔE 24.9

Nearest named CSS colourFirebrick (#B22222)ΔE 15.54, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1ECED3

Analogous#D31E74, #D37D1E

Triadic#1ED323, #231ED3

Split complementary#1ED37D, #1E74D3

Tetradic#74D31E, #1ECED3, #7D1ED3

Tints, shades & saturation

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

Lighter +40%#F7C7C6

Lighter +30%#F19C99

Lighter +20%#EA706D

Lighter +10%#E44540

Darker −10%#A61C18

Darker −20%#7A1411

Darker −30%#4D0D0B

Darker −40%#200505

More saturated +25%#F10700

Less saturated −25%#B53F3C

Channel breakdown

R211

G35

B30

Red211 (82.7%)

Green35 (13.7%)

Blue30 (11.8%)

Hue1.66°

Saturation (HSL)75.1%

Lightness47.25%

Dominant channelRed

Hex per channelR D3 · G 23 · B 1E

Keep nerding

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

#D3231E

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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