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Recognised as Colour

#391C11

  • #391C11
  • Orange
  • Dark
  • Nearest: Black

#391C11 is a orange with RGB values 57, 28, 17 and HSL 17°, 54%, 15%. It is a dark colour, so white text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#391C11#391C11
HEX#391C11
RGBrgb(57, 28, 17)
RGB (0–1)0.2235, 0.1098, 0.0667
RGB percentages22.4%, 11%, 6.7%
HSLhsl(16.5, 54.1%, 14.5%)
HSV / HSBhsv(16.5, 70.2%, 22.4%)
CMYK0%, 50.9%, 70.2%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,742,737
CSS custom property--colour: #391C11;

Brightness & contrast

Relative luminance0.01741WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.58:1
Contrast with white15.58:1WCAG normal text: AAA
Contrast with black1.35:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#C6E3EE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#242010no red cones; affects about 1% of men; ΔE 14.4 from the original
Deuteranopia#2B2611no green cones; the most common form, about 1% of men; ΔE 14.4 from the original
Tritanopia#3F1719no blue cones; rare, and affects men and women equally; ΔE 8.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.58:1WCAG large text: AAA
Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Black · ΔE 23.4Dark slate grey · ΔE 34.7Dim grey · ΔE 35.7Saddle brown · ΔE 38.5Sienna · ΔE 40.5Gray · ΔE 43.7
Nearest named CSS colourBlack (#000000)ΔE 23.44, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#112E39
Analogous#39111A, #393011
Triadic#11391C, #1C1139
Split complementary#113930, #111A39
Tetradic#1A3911, #112E39, #301139

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CA6F4C
Lighter +30%#AF5634
Lighter +20%#884328
Lighter +10%#602F1D
Darker −10%#120905
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#421808
Less saturated −25%#30201A

Channel breakdown

R57
G28
B17
Red57 (22.4%)
Green28 (11%)
Blue17 (6.7%)
Hue16.5°
Saturation (HSL)54.05%
Lightness14.51%
Dominant channelRed
Hex per channelR 39 · G 1C · B 11

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Every value on this page was computed from “391c11” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.