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Recognised as Colour

#B43F00

  • #B43F00
  • Orange
  • Dark
  • Nearest: Chocolate

#B43F00 is a orange with RGB values 180, 63, 0 and HSL 21°, 100%, 35%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#B43F00#B43F00
HEX#B43F00
RGBrgb(180, 63, 0)
RGB (0–1)0.7059, 0.2471, 0
RGB percentages70.6%, 24.7%, 0%
HSLhsl(21, 100%, 35.3%)
HSV / HSBhsv(21, 100%, 70.6%)
CMYK0%, 65%, 100%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,812,608
CSS custom property--colour: #B43F00;

Brightness & contrast

Relative luminance0.13258WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.75:1
Contrast with white5.75:1WCAG normal text: AA
Contrast with black3.65:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#4BC0FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#625500no red cones; affects about 1% of men; ΔE 50.1 from the original
Deuteranopia#7F7000no green cones; the most common form, about 1% of men; ΔE 50.1 from the original
Tritanopia#C71A36no blue cones; rare, and affects men and women equally; ΔE 29.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.75:1WCAG large text: AAA
Contrast with black, large text3.65:1WCAG large text: AA

Named colours

Chocolate · ΔE 15.5Firebrick · ΔE 20.1Dark red · ΔE 20.7Saddle brown · ΔE 23.8Tomato · ΔE 24.1Maroon · ΔE 24.1
Nearest named CSS colourChocolate (#D2691E)ΔE 15.49, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0075B4
Analogous#B4001B, #B49900
Triadic#00B43F, #3F00B4
Split complementary#00B499, #001BB4
Tetradic#1BB400, #0075B4, #9900B4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFAD81
Lighter +30%#FF8C4E
Lighter +20%#FF6B1B
Lighter +10%#E75100
Darker −10%#812D00
Darker −20%#4E1B00
Darker −30%#1B0900
Darker −40%#000000
More saturated +25%#B43F00
Less saturated −25%#9E4617

Channel breakdown

R180
G63
B0
Red180 (70.6%)
Green63 (24.7%)
Blue0 (0%)
Hue21°
Saturation (HSL)100%
Lightness35.29%
Dominant channelRed
Hex per channelR B4 · G 3F · B 00

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Every value on this page was computed from “b43f00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.