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Colour

#391C00

  • #391C00
  • Orange
  • Dark
  • Nearest: Black

#391C00 is a orange with RGB values 57, 28, 0 and HSL 29°, 100%, 11%. 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

#391C00#391C00
HEX#391C00
RGBrgb(57, 28, 0)
RGB (0–1)0.2235, 0.1098, 0
RGB percentages22.4%, 11%, 0%
HSLhsl(29.5, 100%, 11.2%)
HSV / HSBhsv(29.5, 100%, 22.4%)
CMYK0%, 50.9%, 100%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,742,720
CSS custom property--colour: #391C00;

Brightness & contrast

Relative luminance0.017WCAG 2.x, 0 is black and 1 is white
Perceived brightness37.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.67:1
Contrast with white15.67:1WCAG normal text: AAA
Contrast with black1.34:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#C6E3FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#251F00no red cones; affects about 1% of men; ΔE 14 from the original
Deuteranopia#2C2600no green cones; the most common form, about 1% of men; ΔE 14.2 from the original
Tritanopia#3F1516no blue cones; rare, and affects men and women equally; ΔE 14.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.67:1WCAG large text: AAA
Contrast with black, large text1.34:1WCAG large text: Fail

Named colours

Black · ΔE 27.6Saddle brown · ΔE 34.4Sienna · ΔE 37.8Dark slate grey · ΔE 38.1Dim grey · ΔE 38.8Maroon · ΔE 41.9
Nearest named CSS colourBlack (#000000)ΔE 27.57, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#001D39
Analogous#390001, #393800
Triadic#00391C, #1C0039
Split complementary#003938, #000139
Tetradic#013900, #001D39, #380039

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FF8006
Lighter +30%#D26700
Lighter +20%#9F4E00
Lighter +10%#6C3500
Darker −10%#060300
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#391C00
Less saturated −25%#321C07

Channel breakdown

R57
G28
B0
Red57 (22.4%)
Green28 (11%)
Blue0 (0%)
Hue29.47°
Saturation (HSL)100%
Lightness11.18%
Dominant channelRed
Hex per channelR 39 · G 1C · B 00

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Every value on this page was computed from “391c00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.