Recognised as Colour

#AB0012

#AB0012
Red
Dark
Nearest: Firebrick

#AB0012 is a red with RGB values 171, 0, 18 and HSL 354°, 100%, 34%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#AB0012#AB0012

HEX#AB0012

RGBrgb(171, 0, 18)

RGB (0–1)0.6706, 0, 0.0706

RGB percentages67.1%, 0%, 7.1%

HSLhsl(353.7, 100%, 33.5%)

HSV / HSBhsv(353.7, 100%, 67.1%)

CMYK0%, 100%, 89.5%, 32.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,206,674

CSS custom property--colour: #AB0012;

Brightness & contrast

Relative luminance0.08702WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.66:1

Contrast with white7.66:1WCAG normal text: AAA

Contrast with black2.74:1WCAG normal text: Fail

Greyscale equivalent#262626

Inverted#54FFED

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#463D0Fno red cones; affects about 1% of men; ΔE 64.1 from the original

Deuteranopia#6B5F03no green cones; the most common form, about 1% of men; ΔE 64.4 from the original

Tritanopia#BD000Cno blue cones; rare, and affects men and women equally; ΔE 9.2 from the original

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

Contrast with white, large text7.66:1WCAG large text: AAA

Contrast with black, large text2.74:1WCAG large text: Fail

Named colours

Firebrick · ΔE 6.9 Dark red · ΔE 11.3 Brown · ΔE 15.5 Maroon · ΔE 15.8 Crimson · ΔE 18.4 Tomato · ΔE 27.2

Nearest named CSS colourFirebrick (#B22222)ΔE 6.94, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00AB99

Analogous#AB0067, #AB4300

Triadic#12AB00, #0012AB

Split complementary#00AB43, #0067AB

Tetradic#67AB00, #00AB99, #4400AB

Tints, shades & saturation

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

Lighter +40%#FF7886

Lighter +30%#FF4559

Lighter +20%#FF122B

Lighter +10%#DE0017

Darker −10%#78000D

Darker −20%#450007

Darker −30%#120002

Darker −40%#000000

More saturated +25%#AB0012

Less saturated −25%#961523

Channel breakdown

R171

B18

Red171 (67.1%)

Green0 (0%)

Blue18 (7.1%)

Hue353.68°

Saturation (HSL)100%

Lightness33.53%

Dominant channelRed

Hex per channelR AB · G 00 · B 12

Keep nerding

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

#AB0012

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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