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Colour

#311F00

  • #311F00
  • Orange
  • Dark
  • Nearest: Black

#311F00 is a orange with RGB values 49, 31, 0 and HSL 38°, 100%, 10%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#311F00#311F00
HEX#311F00
RGBrgb(49, 31, 0)
RGB (0–1)0.1922, 0.1216, 0
RGB percentages19.2%, 12.2%, 0%
HSLhsl(38, 100%, 9.6%)
HSV / HSBhsv(38, 100%, 19.2%)
CMYK0%, 36.7%, 100%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,219,200
CSS custom property--colour: #311F00;

Brightness & contrast

Relative luminance0.01633WCAG 2.x, 0 is black and 1 is white
Perceived brightness35.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.83:1
Contrast with white15.83:1WCAG normal text: AAA
Contrast with black1.33:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#CEE0FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#262000no red cones; affects about 1% of men; ΔE 7.4 from the original
Deuteranopia#2A2401no green cones; the most common form, about 1% of men; ΔE 7.4 from the original
Tritanopia#361A19no blue cones; rare, and affects men and women equally; ΔE 15.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.83:1WCAG large text: AAA
Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Black · ΔE 24.7Dark slate grey · ΔE 34.2Dim grey · ΔE 37.2Saddle brown · ΔE 38.3Dark olivegreen · ΔE 39.1Sienna · ΔE 41.7
Nearest named CSS colourBlack (#000000)ΔE 24.65, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#001231
Analogous#310700, #2A3100
Triadic#00311F, #1F0031
Split complementary#002B31, #070031
Tetradic#003107, #001231, #31002B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDA000
Lighter +30%#CA8000
Lighter +20%#976000
Lighter +10%#643F00
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#311F00
Less saturated −25%#2B1D06

Channel breakdown

R49
G31
B0
Red49 (19.2%)
Green31 (12.2%)
Blue0 (0%)
Hue37.96°
Saturation (HSL)100%
Lightness9.61%
Dominant channelRed
Hex per channelR 31 · G 1F · B 00

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Every value on this page was computed from “311f00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.