Recognised as Colour

#D30037

#D30037
Red
Dark
Nearest: Crimson

#D30037 is a red with RGB values 211, 0, 55 and HSL 344°, 100%, 41%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D30037#D30037

HEX#D30037

RGBrgb(211, 0, 55)

RGB (0–1)0.8275, 0, 0.2157

RGB percentages82.7%, 0%, 21.6%

HSLhsl(344.4, 100%, 41.4%)

HSV / HSBhsv(344.4, 100%, 82.7%)

CMYK0%, 100%, 73.9%, 17.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,828,151

CSS custom property--colour: #D30037;

Brightness & contrast

Relative luminance0.14125WCAG 2.x, 0 is black and 1 is white

Perceived brightness116.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.49:1

Contrast with white5.49:1WCAG normal text: AA

Contrast with black3.82:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#2CFFC8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#554F37no red cones; affects about 1% of men; ΔE 75.2 from the original

Deuteranopia#847730no green cones; the most common form, about 1% of men; ΔE 75.2 from the original

Tritanopia#E90020no blue cones; rare, and affects men and women equally; ΔE 19.7 from the original

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

Contrast with white, large text5.49:1WCAG large text: AAA

Contrast with black, large text3.82:1WCAG large text: AA

Named colours

Crimson · ΔE 2.7 Firebrick · ΔE 16.2 Brown · ΔE 22.1 Tomato · ΔE 25.6 Dark red · ΔE 26.7 Indian red · ΔE 29.3

Nearest named CSS colourCrimson (#DC143C)ΔE 2.7, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00D39C

Analogous#D300A0, #D33200

Triadic#37D300, #0037D3

Split complementary#00D332, #00A1D3

Tetradic#A1D300, #00D39C, #3300D3

Tints, shades & saturation

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

Lighter +40%#FFA0B9

Lighter +30%#FF6D93

Lighter +20%#FF3A6D

Lighter +10%#FF0748

Darker −10%#A0002A

Darker −20%#6D001C

Darker −30%#3A000F

Darker −40%#070002

More saturated +25%#D30037

Less saturated −25%#B91A44

Channel breakdown

R211

B55

Red211 (82.7%)

Green0 (0%)

Blue55 (21.6%)

Hue344.36°

Saturation (HSL)100%

Lightness41.37%

Dominant channelRed

Hex per channelR D3 · G 00 · B 37

Keep nerding

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

#D30037

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

Nerdulate something else