Colour

#D51838

#D51838
Red
Dark
Nearest: Crimson

#D51838 is a red with RGB values 213, 24, 56 and HSL 350°, 80%, 46%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D51838#D51838

HEX#D51838

RGBrgb(213, 24, 56)

RGB (0–1)0.8353, 0.0941, 0.2196

RGB percentages83.5%, 9.4%, 22%

HSLhsl(349.8, 79.7%, 46.5%)

HSV / HSBhsv(349.8, 88.7%, 83.5%)

CMYK0%, 88.7%, 73.7%, 16.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,965,368

CSS custom property--colour: #D51838;

Brightness & contrast

Relative luminance0.15085WCAG 2.x, 0 is black and 1 is white

Perceived brightness119.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.23:1

Contrast with white5.23:1WCAG normal text: AA

Contrast with black4.02:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#2AE7C7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A5337no red cones; affects about 1% of men; ΔE 73 from the original

Deuteranopia#877A31no green cones; the most common form, about 1% of men; ΔE 73.3 from the original

Tritanopia#EB0028no blue cones; rare, and affects men and women equally; ΔE 16.3 from the original

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

Contrast with white, large text5.23:1WCAG large text: AAA

Contrast with black, large text4.02:1WCAG large text: AA

Named colours

Crimson · ΔE 2.9 Firebrick · ΔE 14.6 Brown · ΔE 20.8 Tomato · ΔE 23.1 Dark red · ΔE 25.8 Indian red · ΔE 27.5

Nearest named CSS colourCrimson (#DC143C)ΔE 2.87, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#18D5B5

Analogous#D51896, #D55618

Triadic#38D518, #1838D5

Split complementary#18D556, #1896D5

Tetradic#97D518, #18D5B5, #5718D5

Tints, shades & saturation

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

Lighter +40%#F8C1CA

Lighter +30%#F393A3

Lighter +20%#EE657C

Lighter +10%#E93755

Darker −10%#A7132C

Darker −20%#790E20

Darker −30%#4B0914

Darker −40%#1E0308

More saturated +25%#ED0028

Less saturated −25%#B7364C

Channel breakdown

R213

G24

B56

Red213 (83.5%)

Green24 (9.4%)

Blue56 (22%)

Hue349.84°

Saturation (HSL)79.75%

Lightness46.47%

Dominant channelRed

Hex per channelR D5 · G 18 · B 38

Keep nerding

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

#D51838

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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