Recognised as Colour

#CE400F

#CE400F
Orange
Dark
Nearest: Tomato

#CE400F is a orange with RGB values 206, 64, 15 and HSL 15°, 86%, 43%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#CE400F#CE400F

HEX#CE400F

RGBrgb(206, 64, 15)

RGB (0–1)0.8078, 0.251, 0.0588

RGB percentages80.8%, 25.1%, 5.9%

HSLhsl(15.4, 86.4%, 43.3%)

HSV / HSBhsv(15.4, 92.7%, 80.8%)

CMYK0%, 68.9%, 92.7%, 19.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,516,815

CSS custom property--colour: #CE400F;

Brightness & contrast

Relative luminance0.16823WCAG 2.x, 0 is black and 1 is white

Perceived brightness123 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.81:1

Contrast with white4.81:1WCAG normal text: AA

Contrast with black4.36:1WCAG normal text: Fail

Greyscale equivalent#5B5B5B

Inverted#31BFF0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6B5E01no red cones; affects about 1% of men; ΔE 59.3 from the original

Deuteranopia#8E7E00no green cones; the most common form, about 1% of men; ΔE 59.7 from the original

Tritanopia#E30038no blue cones; rare, and affects men and women equally; ΔE 27.2 from the original

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

Contrast with white, large text4.81:1WCAG large text: AAA

Contrast with black, large text4.36:1WCAG large text: AA

Named colours

Tomato · ΔE 17.2 Chocolate · ΔE 18.9 Firebrick · ΔE 20 Orange red · ΔE 21.4 Coral · ΔE 22.6 Dark red · ΔE 24.7

Nearest named CSS colourTomato (#FF6347)ΔE 17.21, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0F9DCE

Analogous#CE0F3E, #CE9F0F

Triadic#0FCE40, #400FCE

Split complementary#0FCEA0, #0F3DCE

Tetradic#3DCE0F, #0F9DCE, #A00FCE

Tints, shades & saturation

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

Lighter +40%#F9C3B0

Lighter +30%#F69E80

Lighter +20%#F27A51

Lighter +10%#EF5621

Darker −10%#9E310C

Darker −20%#6F2208

Darker −30%#3F1405

Darker −40%#100501

More saturated +25%#DD3900

Less saturated −25%#B24D2B

Channel breakdown

R206

G64

B15

Red206 (80.8%)

Green64 (25.1%)

Blue15 (5.9%)

Hue15.39°

Saturation (HSL)86.43%

Lightness43.33%

Dominant channelRed

Hex per channelR CE · G 40 · B 0F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ce400F (chemical formula)

Formula
56,066.998 g/mol
401 atoms

Ce400F has a molar mass of 56,066.998 g/mol, made up of 401 atoms across 2 elements: 400 × Ce, 1 × F.

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Molar mass

Molar mass56,066.998 g/mol

Total atoms per molecule401

Distinct elements2

Mass of one molecule9.3101441 × 10^-20 g

Molecules per gram1.0740972 × 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

Ce100%

F0%

Cerium (Ce × 400)56,048 g/mol, 99.966%

Fluorine (F)18.998 g/mol, 0.034%

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