Recognised as Colour

#FBA400

#FBA400
Orange
Dark
Nearest: Orange

#FBA400 is a orange with RGB values 251, 164, 0 and HSL 39°, 100%, 49%. It is a dark colour, so black text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Orange.

Colour values

#FBA400#FBA400

HEX#FBA400

RGBrgb(251, 164, 0)

RGB (0–1)0.9843, 0.6431, 0

RGB percentages98.4%, 64.3%, 0%

HSLhsl(39.2, 100%, 49.2%)

HSV / HSBhsv(39.2, 100%, 98.4%)

CMYK0%, 34.7%, 100%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,491,520

CSS custom property--colour: #FBA400;

Brightness & contrast

Relative luminance0.4706WCAG 2.x, 0 is black and 1 is white

Perceived brightness186.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 10.41:1

Contrast with white2.02:1WCAG normal text: Fail

Contrast with black10.41:1WCAG normal text: AAA

Greyscale equivalent#ABABAB

Inverted#045BFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#C2AA00no red cones; affects about 1% of men; ΔE 29 from the original

Deuteranopia#D6BF0Eno green cones; the most common form, about 1% of men; ΔE 30.1 from the original

Tritanopia#FF8E8Cno blue cones; rare, and affects men and women equally; ΔE 61.4 from the original

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

Contrast with white, large text2.02:1WCAG large text: Fail

Contrast with black, large text10.41:1WCAG large text: AAA

Named colours

Orange · ΔE 1.5 Dark orange · ΔE 15.1 Goldenrod · ΔE 17.5 Dark goldenrod · ΔE 25.2 Gold · ΔE 29.2 Sandy brown · ΔE 31.5

Nearest named CSS colourOrange (#FFA500)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#0057FB

Analogous#FB2700, #D4FB00

Triadic#00FBA4, #A400FB

Split complementary#00D4FB, #2700FB

Tetradic#00FB27, #0057FB, #FB00D4

Tints, shades & saturation

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

Lighter +40%#FFECC8

Lighter +30%#FFDA95

Lighter +20%#FFC962

Lighter +10%#FFB72F

Darker −10%#C88300

Darker −20%#956100

Darker −30%#624000

Darker −40%#2F1F00

More saturated +25%#FBA400

Less saturated −25%#DC9A1F

Channel breakdown

R251

G164

Red251 (98.4%)

Green164 (64.3%)

Blue0 (0%)

Hue39.2°

Saturation (HSL)100%

Lightness49.22%

Dominant channelRed

Hex per channelR FB · G A4 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FBa400 (chemical formula)

Formula
54,950.998 g/mol
401 atoms

FBa400 has a molar mass of 54,950.998 g/mol, made up of 401 atoms across 2 elements: 1 × F, 400 × Ba.

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Molar mass

Molar mass54,950.998 g/mol

Total atoms per molecule401

Distinct elements2

Mass of one molecule9.1248279 × 10^-20 g

Molecules per gram1.0959111 × 10^19

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%

Ba100%

Fluorine (F)18.998 g/mol, 0.035%

Barium (Ba × 400)54,932 g/mol, 99.965%

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Elements in this formula

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