Colour

#A9002F

#A9002F
Red
Dark
Nearest: Brown

#A9002F is a red with RGB values 169, 0, 47 and HSL 343°, 100%, 33%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A9002F#A9002F

HEX#A9002F

RGBrgb(169, 0, 47)

RGB (0–1)0.6627, 0, 0.1843

RGB percentages66.3%, 0%, 18.4%

HSLhsl(343.3, 100%, 33.1%)

HSV / HSBhsv(343.3, 100%, 66.3%)

CMYK0%, 100%, 72.2%, 33.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,075,631

CSS custom property--colour: #A9002F;

Brightness & contrast

Relative luminance0.0864WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.7:1

Contrast with white7.7:1WCAG normal text: AAA

Contrast with black2.73:1WCAG normal text: Fail

Greyscale equivalent#272727

Inverted#56FFD0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#423E2Fno red cones; affects about 1% of men; ΔE 63.6 from the original

Deuteranopia#685E2Ano green cones; the most common form, about 1% of men; ΔE 63.7 from the original

Tritanopia#BA001Ano blue cones; rare, and affects men and women equally; ΔE 17.9 from the original

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

Contrast with white, large text7.7:1WCAG large text: AAA

Contrast with black, large text2.73:1WCAG large text: Fail

Named colours

Brown · ΔE 11.9 Firebrick · ΔE 13.8 Crimson · ΔE 18.2 Dark red · ΔE 19.9 Maroon · ΔE 20.2 Indian red · ΔE 23.8

Nearest named CSS colourBrown (#A52A2A)ΔE 11.88, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00A97A

Analogous#A90083, #A92600

Triadic#2FA900, #002FA9

Split complementary#00A926, #0083A9

Tetradic#83A900, #00A97A, #2600A9

Tints, shades & saturation

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

Lighter +40%#FF769C

Lighter +30%#FF4377

Lighter +20%#FF1052

Lighter +10%#DC003D

Darker −10%#760021

Darker −20%#430013

Darker −30%#100004

Darker −40%#000000

More saturated +25%#A9002F

Less saturated −25%#941538

Channel breakdown

R169

B47

Red169 (66.3%)

Green0 (0%)

Blue47 (18.4%)

Hue343.31°

Saturation (HSL)100%

Lightness33.14%

Dominant channelRed

Hex per channelR A9 · G 00 · B 2F

Keep nerding

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

#A9002F

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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