Colour

#A10200

#A10200
Red
Dark
Nearest: Dark red

#A10200 is a red with RGB values 161, 2, 0 and HSL 1°, 100%, 32%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#A10200#A10200

HEX#A10200

RGBrgb(161, 2, 0)

RGB (0–1)0.6314, 0.0078, 0

RGB percentages63.1%, 0.8%, 0%

HSLhsl(0.7, 100%, 31.6%)

HSV / HSBhsv(0.7, 100%, 63.1%)

CMYK0%, 98.8%, 100%, 36.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,551,808

CSS custom property--colour: #A10200;

Brightness & contrast

Relative luminance0.0762WCAG 2.x, 0 is black and 1 is white

Perceived brightness88 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.32:1

Contrast with white8.32:1WCAG normal text: AAA

Contrast with black2.52:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#5EFDFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#423900no red cones; affects about 1% of men; ΔE 61.5 from the original

Deuteranopia#655900no green cones; the most common form, about 1% of men; ΔE 60.7 from the original

Tritanopia#B20007no blue cones; rare, and affects men and women equally; ΔE 6.1 from the original

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

Contrast with white, large text8.32:1WCAG large text: AAA

Contrast with black, large text2.52:1WCAG large text: Fail

Named colours

Dark red · ΔE 9.6 Firebrick · ΔE 11.3 Maroon · ΔE 14.7 Brown · ΔE 18.6 Crimson · ΔE 24.2 Tomato · ΔE 29.1

Nearest named CSS colourDark red (#8B0000)ΔE 9.59, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#009FA1

Analogous#A1004F, #A15200

Triadic#00A102, #0200A1

Split complementary#00A152, #004FA1

Tetradic#4FA100, #009FA1, #5200A1

Tints, shades & saturation

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

Lighter +40%#FF706E

Lighter +30%#FF3D3B

Lighter +20%#FF0B08

Lighter +10%#D40300

Darker −10%#6E0100

Darker −20%#3B0100

Darker −30%#080000

Darker −40%#000000

More saturated +25%#A10200

Less saturated −25%#8D1614

Channel breakdown

R161

Red161 (63.1%)

Green2 (0.8%)

Blue0 (0%)

Hue0.75°

Saturation (HSL)100%

Lightness31.57%

Dominant channelRed

Hex per channelR A1 · G 02 · B 00

Keep nerding

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#A10200

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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