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Colour

#310D00

  • #310D00
  • Orange
  • Dark
  • Nearest: Black

#310D00 is a orange with RGB values 49, 13, 0 and HSL 16°, 100%, 10%. It is a dark colour, so white text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#310D00#310D00
HEX#310D00
RGBrgb(49, 13, 0)
RGB (0–1)0.1922, 0.051, 0
RGB percentages19.2%, 5.1%, 0%
HSLhsl(15.9, 100%, 9.6%)
HSV / HSBhsv(15.9, 100%, 19.2%)
CMYK0%, 73.5%, 100%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,214,592
CSS custom property--colour: #310D00;

Brightness & contrast

Relative luminance0.00941WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.67:1
Contrast with white17.67:1WCAG normal text: AAA
Contrast with black1.19:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#CEF2FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#181300no red cones; affects about 1% of men; ΔE 18.7 from the original
Deuteranopia#201C00no green cones; the most common form, about 1% of men; ΔE 20 from the original
Tritanopia#37040Ano blue cones; rare, and affects men and women equally; ΔE 9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.67:1WCAG large text: AAA
Contrast with black, large text1.19:1WCAG large text: Fail

Named colours

Black · ΔE 23.3Dark slate grey · ΔE 40.6Saddle brown · ΔE 41.2Dim grey · ΔE 42Maroon · ΔE 43.1Sienna · ΔE 43.6
Nearest named CSS colourBlack (#000000)ΔE 23.32, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#002431
Analogous#31000C, #312600
Triadic#00310D, #0D0031
Split complementary#003126, #000B31
Tetradic#0B3100, #002431, #260031

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FD4300
Lighter +30%#CA3600
Lighter +20%#972800
Lighter +10%#641B00
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#310D00
Less saturated −25%#2B1006

Channel breakdown

R49
G13
B0
Red49 (19.2%)
Green13 (5.1%)
Blue0 (0%)
Hue15.92°
Saturation (HSL)100%
Lightness9.61%
Dominant channelRed
Hex per channelR 31 · G 0D · B 00

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Every value on this page was computed from “310d00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.