Recognised as Colour

#C52502

#C52502
Red
Dark
Nearest: Firebrick

#C52502 is a red with RGB values 197, 37, 2 and HSL 11°, 98%, 39%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C52502#C52502

HEX#C52502

RGBrgb(197, 37, 2)

RGB (0–1)0.7725, 0.1451, 0.0078

RGB percentages77.3%, 14.5%, 0.8%

HSLhsl(10.8, 98%, 39%)

HSV / HSBhsv(10.8, 99%, 77.3%)

CMYK0%, 81.2%, 99%, 22.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,920,066

CSS custom property--colour: #C52502;

Brightness & contrast

Relative luminance0.13198WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.77:1

Contrast with white5.77:1WCAG normal text: AA

Contrast with black3.64:1WCAG normal text: Fail

Greyscale equivalent#444444

Inverted#3ADAFD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5B4F00no red cones; affects about 1% of men; ΔE 65.4 from the original

Deuteranopia#817200no green cones; the most common form, about 1% of men; ΔE 65 from the original

Tritanopia#DA0022no blue cones; rare, and affects men and women equally; ΔE 14.6 from the original

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

Contrast with white, large text5.77:1WCAG large text: AAA

Contrast with black, large text3.64:1WCAG large text: AA

Named colours

Firebrick · ΔE 18.7 Orange red · ΔE 21.3 Tomato · ΔE 21.3 Dark red · ΔE 22.5 Crimson · ΔE 24.7 Red · ΔE 25.3

Nearest named CSS colourFirebrick (#B22222)ΔE 18.72, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#02A2C5

Analogous#C50240, #C58702

Triadic#02C525, #2502C5

Split complementary#02C586, #0241C5

Tetradic#41C502, #02A2C5, #8602C5

Tints, shades & saturation

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

Lighter +40%#FEA895

Lighter +30%#FD7E63

Lighter +20%#FD5530

Lighter +10%#F72E03

Darker −10%#931C01

Darker −20%#601201

Darker −30%#2E0900

Darker −40%#000000

More saturated +25%#C72400

Less saturated −25%#AC351B

Channel breakdown

R197

G37

Red197 (77.3%)

Green37 (14.5%)

Blue2 (0.8%)

Hue10.77°

Saturation (HSL)97.99%

Lightness39.02%

Dominant channelRed

Hex per channelR C5 · G 25 · B 02

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C52502 (chemical formula)

Formula
630,601.522 g/mol
52502 atoms

C52502 has a molar mass of 630,601.522 g/mol, made up of 52502 atoms across 1 element: 52502 × C.

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Molar mass

Molar mass630,601.522 g/mol

Total atoms per molecule52502

Distinct elements1

Mass of one molecule1.0471385 × 10^-18 g

Molecules per gram9.5498354 × 10^17

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

C100%

Carbon (C × 52502)630,601.522 g/mol, 100%

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Elements in this formula

Carbon

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