Colour

#C50009

#C50009
Red
Dark
Nearest: Firebrick

#C50009 is a red with RGB values 197, 0, 9 and HSL 357°, 100%, 39%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C50009#C50009

HEX#C50009

RGBrgb(197, 0, 9)

RGB (0–1)0.7725, 0, 0.0353

RGB percentages77.3%, 0%, 3.5%

HSLhsl(357.3, 100%, 38.6%)

HSV / HSBhsv(357.3, 100%, 77.3%)

CMYK0%, 100%, 95.4%, 22.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,910,601

CSS custom property--colour: #C50009;

Brightness & contrast

Relative luminance0.1189WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.22:1

Contrast with white6.22:1WCAG normal text: AA

Contrast with black3.38:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#3AFFF6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#524802no red cones; affects about 1% of men; ΔE 71.6 from the original

Deuteranopia#7D6E00no green cones; the most common form, about 1% of men; ΔE 70.6 from the original

Tritanopia#DA000Bno blue cones; rare, and affects men and women equally; ΔE 8.1 from the original

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

Contrast with white, large text6.22:1WCAG large text: AAA

Contrast with black, large text3.38:1WCAG large text: AA

Named colours

Firebrick · ΔE 17.8 Crimson · ΔE 20.1 Dark red · ΔE 22.6 Tomato · ΔE 23.4 Orange red · ΔE 23.6 Red · ΔE 23.9

Nearest named CSS colourFirebrick (#B22222)ΔE 17.82, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C5BC

Analogous#C5006C, #C55A00

Triadic#09C500, #0009C5

Split complementary#00C55A, #006BC5

Tetradic#6CC500, #00C5BC, #5900C5

Tints, shades & saturation

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

Lighter +40%#FF9297

Lighter +30%#FF5F66

Lighter +20%#FF2C36

Lighter +10%#F8000B

Darker −10%#920007

Darker −20%#5F0004

Darker −30%#2C0002

Darker −40%#000000

More saturated +25%#C50009

Less saturated −25%#AC191F

Channel breakdown

R197

Red197 (77.3%)

Green0 (0%)

Blue9 (3.5%)

Hue357.26°

Saturation (HSL)100%

Lightness38.63%

Dominant channelRed

Hex per channelR C5 · G 00 · B 09

Keep nerding

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#C50009

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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