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Recognised as Colour

#FB8B00

  • #FB8B00
  • Orange
  • Dark
  • Nearest: Dark orange

#FB8B00 is a orange with RGB values 251, 139, 0 and HSL 33°, 100%, 49%. It is a dark colour, so black text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dark orange.

Colour values

#FB8B00#FB8B00
HEX#FB8B00
RGBrgb(251, 139, 0)
RGB (0–1)0.9843, 0.5451, 0
RGB percentages98.4%, 54.5%, 0%
HSLhsl(33.2, 100%, 49.2%)
HSV / HSBhsv(33.2, 100%, 98.4%)
CMYK0%, 44.6%, 100%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,485,120
CSS custom property--colour: #FB8B00;

Brightness & contrast

Relative luminance0.38974WCAG 2.x, 0 is black and 1 is white
Perceived brightness173.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.79:1
Contrast with white2.39:1WCAG normal text: Fail
Contrast with black8.79:1WCAG normal text: AAA
Greyscale equivalent#999999
Inverted#0474FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#AD9800no red cones; affects about 1% of men; ΔE 42.1 from the original
Deuteranopia#C8B200no green cones; the most common form, about 1% of men; ΔE 42.6 from the original
Tritanopia#FF7177no blue cones; rare, and affects men and women equally; ΔE 54.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.39:1WCAG large text: Fail
Contrast with black, large text8.79:1WCAG large text: AAA

Named colours

Dark orange · ΔE 1.5Orange · ΔE 14Chocolate · ΔE 22.1Goldenrod · ΔE 27.9Coral · ΔE 28.9Dark goldenrod · ΔE 30.1
Nearest named CSS colourDark orange (#FF8C00)ΔE 1.52, below the just-noticeable difference
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0070FB
Analogous#FB0D00, #EEFB00
Triadic#00FB8B, #8B00FB
Split complementary#00EEFB, #0D00FB
Tetradic#00FB0D, #0070FB, #FB00EE

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFE6C8
Lighter +30%#FFD095
Lighter +20%#FFB962
Lighter +10%#FFA22F
Darker −10%#C86F00
Darker −20%#955300
Darker −30%#623600
Darker −40%#2F1A00
More saturated +25%#FB8B00
Less saturated −25%#DC881F

Channel breakdown

R251
G139
B0
Red251 (98.4%)
Green139 (54.5%)
Blue0 (0%)
Hue33.23°
Saturation (HSL)100%
Lightness49.22%
Dominant channelRed
Hex per channelR FB · G 8B · B 00

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Every value on this page was computed from “fb8b00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.