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Colour

#B83800

  • #B83800
  • Orange
  • Dark
  • Nearest: Firebrick

#B83800 is a orange with RGB values 184, 56, 0 and HSL 18°, 100%, 36%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B83800#B83800
HEX#B83800
RGBrgb(184, 56, 0)
RGB (0–1)0.7216, 0.2196, 0
RGB percentages72.2%, 22%, 0%
HSLhsl(18.3, 100%, 36.1%)
HSV / HSBhsv(18.3, 100%, 72.2%)
CMYK0%, 69.6%, 100%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,072,960
CSS custom property--colour: #B83800;

Brightness & contrast

Relative luminance0.13019WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.83:1
Contrast with white5.83:1WCAG normal text: AA
Contrast with black3.6:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#47C7FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5F5300no red cones; affects about 1% of men; ΔE 54.9 from the original
Deuteranopia#7E7000no green cones; the most common form, about 1% of men; ΔE 54.9 from the original
Tritanopia#CB0030no blue cones; rare, and affects men and women equally; ΔE 27.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.83:1WCAG large text: AAA
Contrast with black, large text3.6:1WCAG large text: AA

Named colours

Firebrick · ΔE 18.4Chocolate · ΔE 18.4Dark red · ΔE 19.8Tomato · ΔE 22.6Maroon · ΔE 23.9Brown · ΔE 24.6
Nearest named CSS colourFirebrick (#B22222)ΔE 18.36, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0080B8
Analogous#B80024, #B89400
Triadic#00B838, #3800B8
Split complementary#00B894, #0024B8
Tetradic#24B800, #0080B8, #9400B8

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFAA85
Lighter +30%#FF8752
Lighter +20%#FF631F
Lighter +10%#EB4800
Darker −10%#852800
Darker −20%#521900
Darker −30%#1F0900
Darker −40%#000000
More saturated +25%#B83800
Less saturated −25%#A14117

Channel breakdown

R184
G56
B0
Red184 (72.2%)
Green56 (22%)
Blue0 (0%)
Hue18.26°
Saturation (HSL)100%
Lightness36.08%
Dominant channelRed
Hex per channelR B8 · G 38 · B 00

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Every value on this page was computed from “b83800” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.