Recognised as Colour

#FC690B

#FC690B
Orange
Dark
Nearest: Orange red

#FC690B is a orange with RGB values 252, 105, 11 and HSL 23°, 98%, 52%. It is a dark colour, so black text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Orange red.

Colour values

#FC690B#FC690B

HEX#FC690B

RGBrgb(252, 105, 11)

RGB (0–1)0.9882, 0.4118, 0.0431

RGB percentages98.8%, 41.2%, 4.3%

HSLhsl(23.4, 97.6%, 51.6%)

HSV / HSBhsv(23.4, 95.6%, 98.8%)

CMYK0%, 58.3%, 95.6%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,541,963

CSS custom property--colour: #FC690B;

Brightness & contrast

Relative luminance0.30823WCAG 2.x, 0 is black and 1 is white

Perceived brightness159.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.16:1

Contrast with white2.93:1WCAG normal text: Fail

Contrast with black7.16:1WCAG normal text: AAA

Greyscale equivalent#818181

Inverted#0396F4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#948200no red cones; affects about 1% of men; ΔE 58.8 from the original

Deuteranopia#B8A300no green cones; the most common form, about 1% of men; ΔE 58.9 from the original

Tritanopia#FF435Ano blue cones; rare, and affects men and women equally; ΔE 42.6 from the original

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

Contrast with white, large text2.93:1WCAG large text: Fail

Contrast with black, large text7.16:1WCAG large text: AAA

Named colours

Orange red · ΔE 15.8 Dark orange · ΔE 18.5 Chocolate · ΔE 21 Tomato · ΔE 23.4 Coral · ΔE 23.5 Red · ΔE 29

Nearest named CSS colourOrange red (#FF4500)ΔE 15.84, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0B9EFC

Analogous#FC0B25, #FCE20B

Triadic#0BFC69, #690BFC

Split complementary#0BFCE1, #0B26FC

Tetradic#26FC0B, #0B9EFC, #E10BFC

Tints, shades & saturation

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

Lighter +40%#FEE5D5

Lighter +30%#FEC6A2

Lighter +20%#FDA770

Lighter +10%#FD883D

Darker −10%#D15303

Darker −20%#9F3F02

Darker −30%#6D2B01

Darker −40%#3A1701

More saturated +25%#FF6808

Less saturated −25%#DD702A

Channel breakdown

R252

G105

B11

Red252 (98.8%)

Green105 (41.2%)

Blue11 (4.3%)

Hue23.4°

Saturation (HSL)97.57%

Lightness51.57%

Dominant channelRed

Hex per channelR FC · G 69 · B 0B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FC690B (chemical formula)

Formula
8,317.398 g/mol
692 atoms

FC690B has a molar mass of 8,317.398 g/mol, made up of 692 atoms across 3 elements: 1 × F, 690 × C, 1 × B.

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Molar mass

Molar mass8,317.398 g/mol

Total atoms per molecule692

Distinct elements3

Mass of one molecule1.3811364 × 10^-20 g

Molecules per gram7.2404143 × 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

F0.2%

C99.6%

B0.1%

Fluorine (F)18.998 g/mol, 0.228%

Carbon (C × 690)8,287.59 g/mol, 99.642%

Boron (B)10.81 g/mol, 0.13%

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