Recognised as Colour

#3A0101

#3A0101
Red
Dark
Nearest: Black

#3A0101 is a red with RGB values 58, 1, 1 and HSL 0°, 97%, 12%. It is a dark colour, so white text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#3A0101#3A0101

HEX#3A0101

RGBrgb(58, 1, 1)

RGB (0–1)0.2275, 0.0039, 0.0039

RGB percentages22.7%, 0.4%, 0.4%

HSLhsl(0, 96.6%, 11.6%)

HSV / HSBhsv(0, 98.3%, 22.7%)

CMYK0%, 98.3%, 98.3%, 77.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,801,345

CSS custom property--colour: #3A0101;

Brightness & contrast

Relative luminance0.00923WCAG 2.x, 0 is black and 1 is white

Perceived brightness31.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.73:1

Contrast with white17.73:1WCAG normal text: AAA

Contrast with black1.18:1WCAG normal text: Fail

Greyscale equivalent#0D0D0D

Inverted#C5FEFE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#131000no red cones; affects about 1% of men; ΔE 29.5 from the original

Deuteranopia#221D00no green cones; the most common form, about 1% of men; ΔE 29.7 from the original

Tritanopia#410002no blue cones; rare, and affects men and women equally; ΔE 3.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.73:1WCAG large text: AAA

Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 31.4 Maroon · ΔE 36.9 Saddle brown · ΔE 40.6 Brown · ΔE 40.8 Dark red · ΔE 42 Sienna · ΔE 42.3

Nearest named CSS colourBlack (#000000)ΔE 31.35, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#013A3A

Analogous#3A011D, #3A1D01

Triadic#013A01, #01013A

Split complementary#013A1D, #011D3A

Tetradic#1D3A01, #013A3A, #1D013A

Tints, shades & saturation

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

Lighter +40%#FB0C0C

Lighter +30%#D00404

Lighter +20%#9E0303

Lighter +10%#6C0202

Darker −10%#080000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#3B0000

Less saturated −25%#330808

Channel breakdown

R58

Red58 (22.7%)

Green1 (0.4%)

Blue1 (0.4%)

Hue0°

Saturation (HSL)96.61%

Lightness11.57%

Dominant channelRed

Hex per channelR 3A · G 01 · B 01

Keep nerding

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

#3A0101

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

Nerdulate something else