Colour

#C71F00

#C71F00
Red
Dark
Nearest: Firebrick

#C71F00 is a red with RGB values 199, 31, 0 and HSL 9°, 100%, 39%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C71F00#C71F00

HEX#C71F00

RGBrgb(199, 31, 0)

RGB (0–1)0.7804, 0.1216, 0

RGB percentages78%, 12.2%, 0%

HSLhsl(9.3, 100%, 39%)

HSV / HSBhsv(9.3, 100%, 78%)

CMYK0%, 84.4%, 100%, 22%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,049,600

CSS custom property--colour: #C71F00;

Brightness & contrast

Relative luminance0.13122WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.79:1

Contrast with white5.79:1WCAG normal text: AA

Contrast with black3.62:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#38E0FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A4E00no red cones; affects about 1% of men; ΔE 67.5 from the original

Deuteranopia#827200no green cones; the most common form, about 1% of men; ΔE 66.6 from the original

Tritanopia#DC001Dno blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

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

Contrast with white, large text5.79:1WCAG large text: AAA

Contrast with black, large text3.62:1WCAG large text: AA

Named colours

Firebrick · ΔE 20 Orange red · ΔE 20.1 Tomato · ΔE 22.1 Red · ΔE 23.4 Dark red · ΔE 23.9 Crimson · ΔE 24.7

Nearest named CSS colourFirebrick (#B22222)ΔE 20.04, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00A8C7

Analogous#C70045, #C78300

Triadic#00C71F, #1F00C7

Split complementary#00C783, #0045C7

Tetradic#45C700, #00A8C7, #8300C7

Tints, shades & saturation

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

Lighter +40%#FFA594

Lighter +30%#FF7A61

Lighter +20%#FF4F2E

Lighter +10%#FA2700

Darker −10%#941700

Darker −20%#610F00

Darker −30%#2E0700

Darker −40%#000000

More saturated +25%#C71F00

Less saturated −25%#AE3019

Channel breakdown

R199

G31

Red199 (78%)

Green31 (12.2%)

Blue0 (0%)

Hue9.35°

Saturation (HSL)100%

Lightness39.02%

Dominant channelRed

Hex per channelR C7 · G 1F · B 00

Keep nerding

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

#C71F00

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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