Recognised as Colour

#A10001

#A10001
Red
Dark
Nearest: Dark red

#A10001 is a red with RGB values 161, 0, 1 and HSL 360°, 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

#A10001#A10001

HEX#A10001

RGBrgb(161, 0, 1)

RGB (0–1)0.6314, 0, 0.0039

RGB percentages63.1%, 0%, 0.4%

HSLhsl(359.6, 100%, 31.6%)

HSV / HSBhsv(359.6, 100%, 63.1%)

CMYK0%, 100%, 99.4%, 36.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,551,297

CSS custom property--colour: #A10001;

Brightness & contrast

Relative luminance0.07579WCAG 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 8.35:1

Contrast with white8.35:1WCAG normal text: AAA

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

Greyscale equivalent#222222

Inverted#5EFFFE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#423900no red cones; affects about 1% of men; ΔE 61.7 from the original

Deuteranopia#655900no green cones; the most common form, about 1% of men; ΔE 61 from the original

Tritanopia#B20006no blue cones; rare, and affects men and women equally; ΔE 6.2 from the original

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

Contrast with white, large text8.35:1WCAG large text: AAA

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

Named colours

Dark red · ΔE 9.4 Firebrick · ΔE 11 Maroon · ΔE 14.5 Brown · ΔE 18.3 Crimson · ΔE 23.8 Tomato · ΔE 29.1

Nearest named CSS colourDark red (#8B0000)ΔE 9.43, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00A1A0

Analogous#A10052, #A15000

Triadic#01A100, #0001A1

Split complementary#00A150, #0052A1

Tetradic#51A100, #00A1A0, #4F00A1

Tints, shades & saturation

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

Lighter +40%#FF6E6F

Lighter +30%#FF3B3C

Lighter +20%#FF080A

Lighter +10%#D40001

Darker −10%#6E0001

Darker −20%#3B0000

Darker −30%#080000

Darker −40%#000000

More saturated +25%#A10001

Less saturated −25%#8D1415

Channel breakdown

R161

Red161 (63.1%)

Green0 (0%)

Blue1 (0.4%)

Hue359.63°

Saturation (HSL)100%

Lightness31.57%

Dominant channelRed

Hex per channelR A1 · G 00 · B 01

Keep nerding

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

#A10001

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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