Recognised as Colour

#B25242

#B25242
Red
Dark
Nearest: Indian red

#B25242 is a red with RGB values 178, 82, 66 and HSL 9°, 46%, 48%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B25242#B25242

HEX#B25242

RGBrgb(178, 82, 66)

RGB (0–1)0.698, 0.3216, 0.2588

RGB percentages69.8%, 32.2%, 25.9%

HSLhsl(8.6, 45.9%, 47.8%)

HSV / HSBhsv(8.6, 62.9%, 69.8%)

CMYK0%, 53.9%, 62.9%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,686,466

CSS custom property--colour: #B25242;

Brightness & contrast

Relative luminance0.15893WCAG 2.x, 0 is black and 1 is white

Perceived brightness118 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.03:1

Contrast with white5.03:1WCAG normal text: AA

Contrast with black4.18:1WCAG normal text: Fail

Greyscale equivalent#656565

Inverted#4DADBD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A6240no red cones; affects about 1% of men; ΔE 41.3 from the original

Deuteranopia#827740no green cones; the most common form, about 1% of men; ΔE 41.8 from the original

Tritanopia#C3404Eno blue cones; rare, and affects men and women equally; ΔE 16.6 from the original

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

Contrast with white, large text5.03:1WCAG large text: AAA

Contrast with black, large text4.18:1WCAG large text: AA

Named colours

Indian red · ΔE 11.3 Sienna · ΔE 11.8 Brown · ΔE 15.3 Saddle brown · ΔE 19.6 Light coral · ΔE 21.7 Salmon · ΔE 21.8

Nearest named CSS colourIndian red (#CD5C5C)ΔE 11.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#42A2B2

Analogous#B2426A, #B28A42

Triadic#42B252, #5242B2

Split complementary#42B28A, #426AB2

Tetradic#6AB242, #42A2B2, #8A42B2

Tints, shades & saturation

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

Lighter +40%#EED6D2

Lighter +30%#E0B4AD

Lighter +20%#D39287

Lighter +10%#C57062

Darker −10%#8D4134

Darker −20%#683026

Darker −30%#421F19

Darker −40%#1D0D0B

More saturated +25%#D03C24

Less saturated −25%#936860

Channel breakdown

R178

G82

B66

Red178 (69.8%)

Green82 (32.2%)

Blue66 (25.9%)

Hue8.57°

Saturation (HSL)45.9%

Lightness47.84%

Dominant channelRed

Hex per channelR B2 · G 52 · B 42

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B25242 (chemical formula)

Formula
272,866.02 g/mol
25242 atoms

B25242 has a molar mass of 272,866.02 g/mol, made up of 25242 atoms across 1 element: 25242 × B.

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Molar mass

Molar mass272,866.02 g/mol

Total atoms per molecule25242

Distinct elements1

Mass of one molecule4.5310469 × 10^-19 g

Molecules per gram2.2069955 × 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

B100%

Boron (B × 25242)272,866.02 g/mol, 100%

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Elements in this formula

Boron

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