Recognised as Colour

#3A191B

#3A191B
Red
Dark
Nearest: Black

#3A191B is a red with RGB values 58, 25, 27 and HSL 356°, 40%, 16%. It is a dark colour, so white text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#3A191B#3A191B

HEX#3A191B

RGBrgb(58, 25, 27)

RGB (0–1)0.2275, 0.098, 0.1059

RGB percentages22.7%, 9.8%, 10.6%

HSLhsl(356.4, 39.8%, 16.3%)

HSV / HSBhsv(356.4, 56.9%, 22.7%)

CMYK0%, 56.9%, 53.4%, 77.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,807,515

CSS custom property--colour: #3A191B;

Brightness & contrast

Relative luminance0.01674WCAG 2.x, 0 is black and 1 is white

Perceived brightness38.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.73:1

Contrast with white15.73:1WCAG normal text: AAA

Contrast with black1.33:1WCAG normal text: Fail

Greyscale equivalent#202020

Inverted#C5E6E4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#201F1Bno red cones; affects about 1% of men; ΔE 17.4 from the original

Deuteranopia#28251Ano green cones; the most common form, about 1% of men; ΔE 17.5 from the original

Tritanopia#3F151Ano blue cones; rare, and affects men and women equally; ΔE 4.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.73:1WCAG large text: AAA

Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Black · ΔE 22.3 Dark slate grey · ΔE 34.7 Dim grey · ΔE 35.4 Saddle brown · ΔE 43.3 Gray · ΔE 43.6 Sienna · ΔE 44

Nearest named CSS colourBlack (#000000)ΔE 22.31, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#193A38

Analogous#3A192B, #3A2819

Triadic#1B3A19, #191B3A

Split complementary#193A27, #192B3A

Tetradic#2B3A19, #193A38, #27193A

Tints, shades & saturation

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

Lighter +40%#BC6369

Lighter +30%#A5474D

Lighter +20%#81383C

Lighter +10%#5E282C

Darker −10%#160A0A

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#440F12

Less saturated −25%#302324

Channel breakdown

R58

G25

B27

Red58 (22.7%)

Green25 (9.8%)

Blue27 (10.6%)

Hue356.36°

Saturation (HSL)39.76%

Lightness16.27%

Dominant channelRed

Hex per channelR 3A · G 19 · B 1B

Keep nerding

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

#3A191B

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