Colour

#A70000

#A70000
Red
Dark
Nearest: Dark red

#A70000 is a red with RGB values 167, 0, 0 and HSL 0°, 100%, 33%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#A70000#A70000

HEX#A70000

RGBrgb(167, 0, 0)

RGB (0–1)0.6549, 0, 0

RGB percentages65.5%, 0%, 0%

HSLhsl(0, 100%, 32.7%)

HSV / HSBhsv(0, 100%, 65.5%)

CMYK0%, 100%, 100%, 34.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,944,512

CSS custom property--colour: #A70000;

Brightness & contrast

Relative luminance0.08215WCAG 2.x, 0 is black and 1 is white

Perceived brightness91.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.95:1

Contrast with white7.95:1WCAG normal text: AAA

Contrast with black2.64:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#58FFFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#453B00no red cones; affects about 1% of men; ΔE 63.1 from the original

Deuteranopia#695C00no green cones; the most common form, about 1% of men; ΔE 62.3 from the original

Tritanopia#B90006no blue cones; rare, and affects men and women equally; ΔE 6.4 from the original

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

Contrast with white, large text7.95:1WCAG large text: AAA

Contrast with black, large text2.64:1WCAG large text: Fail

Named colours

Dark red · ΔE 12.2 Firebrick · ΔE 12.2 Maroon · ΔE 17.3 Brown · ΔE 20.3 Crimson · ΔE 23.3 Tomato · ΔE 27.9

Nearest named CSS colourDark red (#8B0000)ΔE 12.19, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00A7A7

Analogous#A70053, #A75300

Triadic#00A700, #0000A7

Split complementary#00A753, #0053A7

Tetradic#53A700, #00A7A7, #5300A7

Tints, shades & saturation

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

Lighter +40%#FF7474

Lighter +30%#FF4141

Lighter +20%#FF0E0E

Lighter +10%#DA0000

Darker −10%#740000

Darker −20%#410000

Darker −30%#0E0000

Darker −40%#000000

More saturated +25%#A70000

Less saturated −25%#921515

Channel breakdown

R167

Red167 (65.5%)

Green0 (0%)

Blue0 (0%)

Hue0°

Saturation (HSL)100%

Lightness32.75%

Dominant channelRed

Hex per channelR A7 · G 00 · B 00

Keep nerding

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#A70000

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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