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Recognised as Colour

#391D26

  • #391D26
  • Red
  • Dark
  • Nearest: Black

#391D26 is a red with RGB values 57, 29, 38 and HSL 341°, 33%, 17%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#391D26#391D26
HEX#391D26
RGBrgb(57, 29, 38)
RGB (0–1)0.2235, 0.1137, 0.149
RGB percentages22.4%, 11.4%, 14.9%
HSLhsl(340.7, 32.6%, 16.9%)
HSV / HSBhsv(340.7, 49.1%, 22.4%)
CMYK0%, 49.1%, 33.3%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,743,014
CSS custom property--colour: #391D26;

Brightness & contrast

Relative luminance0.01889WCAG 2.x, 0 is black and 1 is white
Perceived brightness40.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.24:1
Contrast with white15.24:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#C6E2D9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#212226no red cones; affects about 1% of men; ΔE 14.8 from the original
Deuteranopia#282725no green cones; the most common form, about 1% of men; ΔE 15.2 from the original
Tritanopia#3D1B20no blue cones; rare, and affects men and women equally; ΔE 4.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.24:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Black · ΔE 21.2Dark slate grey · ΔE 31.6Dim grey · ΔE 33.1Gray · ΔE 41.5Slate grey · ΔE 43Light slate grey · ΔE 45.9
Nearest named CSS colourBlack (#000000)ΔE 21.19, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D3930
Analogous#391D34, #39221D
Triadic#26391D, #1D2639
Split complementary#1D3922, #1D3439
Tetradic#34391D, #1D3930, #221D39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B56D84
Lighter +30%#9E516A
Lighter +20%#7D3F53
Lighter +10%#5B2E3D
Darker −10%#170C0F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#441222
Less saturated −25%#2E282A

Channel breakdown

R57
G29
B38
Red57 (22.4%)
Green29 (11.4%)
Blue38 (14.9%)
Hue340.71°
Saturation (HSL)32.56%
Lightness16.86%
Dominant channelRed
Hex per channelR 39 · G 1D · B 26

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Every value on this page was computed from “391d26” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.