Recognised as Colour

#2A0401

#2A0401
Red
Dark
Nearest: Black

#2A0401 is a red with RGB values 42, 4, 1 and HSL 4°, 95%, 8%. It is a dark colour, so white text on it reaches 18.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2A0401#2A0401

HEX#2A0401

RGBrgb(42, 4, 1)

RGB (0–1)0.1647, 0.0157, 0.0039

RGB percentages16.5%, 1.6%, 0.4%

HSLhsl(4.4, 95.3%, 8.4%)

HSV / HSBhsv(4.4, 97.6%, 16.5%)

CMYK0%, 90.5%, 97.6%, 83.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,753,537

CSS custom property--colour: #2A0401;

Brightness & contrast

Relative luminance0.00581WCAG 2.x, 0 is black and 1 is white

Perceived brightness23.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.81:1

Contrast with white18.81:1WCAG normal text: AAA

Contrast with black1.12:1WCAG normal text: Fail

Greyscale equivalent#0C0C0C

Inverted#D5FBFE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0F0C01no red cones; affects about 1% of men; ΔE 19.1 from the original

Deuteranopia#191500no green cones; the most common form, about 1% of men; ΔE 19.8 from the original

Tritanopia#2F0003no blue cones; rare, and affects men and women equally; ΔE 5.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.81:1WCAG large text: AAA

Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 20.4 Dark slate grey · ΔE 41.2 Dim grey · ΔE 43.8 Saddle brown · ΔE 47 Maroon · ΔE 47.2 Sienna · ΔE 48.9

Nearest named CSS colourBlack (#000000)ΔE 20.39, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01272A

Analogous#2A0112, #2A1801

Triadic#012A04, #04012A

Split complementary#012A18, #01132A

Tetradic#132A01, #01272A, #19012A

Tints, shades & saturation

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

Lighter +40%#F11706

Lighter +30%#BF1205

Lighter +20%#8E0D03

Lighter +10%#5C0902

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2B0300

Less saturated −25%#250906

Channel breakdown

R42

Red42 (16.5%)

Green4 (1.6%)

Blue1 (0.4%)

Hue4.39°

Saturation (HSL)95.35%

Lightness8.43%

Dominant channelRed

Hex per channelR 2A · G 04 · B 01

Keep nerding

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

#2A0401

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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