Recognised as Colour

#401B19

#401B19
Red
Dark
Nearest: Black

#401B19 is a red with RGB values 64, 27, 25 and HSL 3°, 44%, 17%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#401B19#401B19

HEX#401B19

RGBrgb(64, 27, 25)

RGB (0–1)0.251, 0.1059, 0.098

RGB percentages25.1%, 10.6%, 9.8%

HSLhsl(3.1, 43.8%, 17.5%)

HSV / HSBhsv(3.1, 60.9%, 25.1%)

CMYK0%, 57.8%, 60.9%, 74.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,201,241

CSS custom property--colour: #401B19;

Brightness & contrast

Relative luminance0.01944WCAG 2.x, 0 is black and 1 is white

Perceived brightness41.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.12:1

Contrast with white15.12:1WCAG normal text: AAA

Contrast with black1.39:1WCAG normal text: Fail

Greyscale equivalent#232323

Inverted#BFE4E6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#242119no red cones; affects about 1% of men; ΔE 18.6 from the original

Deuteranopia#2D2918no green cones; the most common form, about 1% of men; ΔE 19.3 from the original

Tritanopia#46151Bno blue cones; rare, and affects men and women equally; ΔE 6.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.12:1WCAG large text: AAA

Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Black · ΔE 25.4 Dim grey · ΔE 35.6 Dark slate grey · ΔE 36.2 Saddle brown · ΔE 39.3 Sienna · ΔE 40.2 Maroon · ΔE 42.6

Nearest named CSS colourBlack (#000000)ΔE 25.37, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#193E40

Analogous#40192A, #402F19

Triadic#19401B, #1B1940

Split complementary#19402F, #192A40

Tetradic#2A4019, #193E40, #2F1940

Tints, shades & saturation

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

Lighter +40%#C26863

Lighter +30%#AE4944

Lighter +20%#893A36

Lighter +10%#652A27

Darker −10%#1B0C0B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#4B110E

Less saturated −25%#352524

Channel breakdown

R64

G27

B25

Red64 (25.1%)

Green27 (10.6%)

Blue25 (9.8%)

Hue3.08°

Saturation (HSL)43.82%

Lightness17.45%

Dominant channelRed

Hex per channelR 40 · G 1B · B 19

Keep nerding

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

#401B19

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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