Recognised as Colour

#FB8810

#FB8810
Orange
Dark
Nearest: Dark orange

#FB8810 is a orange with RGB values 251, 136, 16 and HSL 31°, 97%, 52%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark orange.

Colour values

#FB8810#FB8810

HEX#FB8810

RGBrgb(251, 136, 16)

RGB (0–1)0.9843, 0.5333, 0.0627

RGB percentages98.4%, 53.3%, 6.3%

HSLhsl(30.6, 96.7%, 52.4%)

HSV / HSBhsv(30.6, 93.6%, 98.4%)

CMYK0%, 45.8%, 93.6%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,484,368

CSS custom property--colour: #FB8810;

Brightness & contrast

Relative luminance0.38155WCAG 2.x, 0 is black and 1 is white

Perceived brightness172.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.63:1

Contrast with white2.43:1WCAG normal text: Fail

Contrast with black8.63:1WCAG normal text: AAA

Greyscale equivalent#989898

Inverted#0477EF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#AB9600no red cones; affects about 1% of men; ΔE 43.2 from the original

Deuteranopia#C6B00Dno green cones; the most common form, about 1% of men; ΔE 44 from the original

Tritanopia#FF6D75no blue cones; rare, and affects men and women equally; ΔE 51.8 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text2.43:1WCAG large text: Fail

Contrast with black, large text8.63:1WCAG large text: AAA

Named colours

Dark orange · ΔE 3.7 Orange · ΔE 16.6 Chocolate · ΔE 19.6 Coral · ΔE 25.9 Goldenrod · ΔE 29.2 Sandy brown · ΔE 29.7

Nearest named CSS colourDark orange (#FF8C00)ΔE 3.71, a close match

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#1083FB

Analogous#FB1310, #F8FB10

Triadic#10FB88, #8810FB

Split complementary#10F8FB, #1310FB

Tetradic#10FB13, #1083FB, #FB10F8

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FEECD9

Lighter +30%#FED3A6

Lighter +20%#FDBA74

Lighter +10%#FCA142

Darker −10%#D46E04

Darker −20%#A25403

Darker −30%#703A02

Darker −40%#3E2001

More saturated +25%#FF880C

Less saturated −25%#DD872E

Channel breakdown

R251

G136

B16

Red251 (98.4%)

Green136 (53.3%)

Blue16 (6.3%)

Hue30.64°

Saturation (HSL)96.71%

Lightness52.35%

Dominant channelRed

Hex per channelR FB · G 88 · B 10

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB8810 (chemical formula)

Formula
95,255.098 g/mol
8811 atoms

FB8810 has a molar mass of 95,255.098 g/mol, made up of 8811 atoms across 2 elements: 1 × F, 8810 × B.

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Molar mass

Molar mass95,255.098 g/mol

Total atoms per molecule8811

Distinct elements2

Mass of one molecule1.5817481 × 10^-19 g

Molecules per gram6.3221191 × 10^18

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

F0%

B100%

Fluorine (F)18.998 g/mol, 0.02%

Boron (B × 8810)95,236.1 g/mol, 99.98%

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Elements in this formula

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