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Recognised as Colour

#31230D

  • #31230D
  • Orange
  • Dark
  • Nearest: Black

#31230D is a orange with RGB values 49, 35, 13 and HSL 37°, 58%, 12%. It is a dark colour, so white text on it reaches 15.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#31230D#31230D
HEX#31230D
RGBrgb(49, 35, 13)
RGB (0–1)0.1922, 0.1373, 0.051
RGB percentages19.2%, 13.7%, 5.1%
HSLhsl(36.7, 58.1%, 12.2%)
HSV / HSBhsv(36.7, 73.5%, 19.2%)
CMYK0%, 28.6%, 73.5%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,220,237
CSS custom property--colour: #31230D;

Brightness & contrast

Relative luminance0.01884WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.25:1
Contrast with white15.25:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#CEDCF2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#28230Bno red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#2C270Eno green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#361F1Eno blue cones; rare, and affects men and women equally; ΔE 13.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.25:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Black · ΔE 22.5Dark slate grey · ΔE 30.2Dim grey · ΔE 34Dark olivegreen · ΔE 38.1Saddle brown · ΔE 40.4Gray · ΔE 42.2
Nearest named CSS colourBlack (#000000)ΔE 22.46, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D1B31
Analogous#31110D, #2D310D
Triadic#0D3123, #230D31
Split complementary#0D2D31, #110D31
Tetradic#0D3111, #0D1B31, #310D2D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CC953E
Lighter +30%#AA792D
Lighter +20%#825D22
Lighter +10%#594018
Darker −10%#090602
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#392505
Less saturated −25%#292115

Channel breakdown

R49
G35
B13
Red49 (19.2%)
Green35 (13.7%)
Blue13 (5.1%)
Hue36.67°
Saturation (HSL)58.06%
Lightness12.16%
Dominant channelRed
Hex per channelR 31 · G 23 · B 0D

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Every value on this page was computed from “31230d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.