Recognised as Colour

#CA3926

#CA3926
Red
Dark
Nearest: Firebrick

#CA3926 is a red with RGB values 202, 57, 38 and HSL 7°, 68%, 47%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CA3926#CA3926

HEX#CA3926

RGBrgb(202, 57, 38)

RGB (0–1)0.7922, 0.2235, 0.149

RGB percentages79.2%, 22.4%, 14.9%

HSLhsl(7, 68.3%, 47.1%)

HSV / HSBhsv(7, 81.2%, 79.2%)

CMYK0%, 71.8%, 81.2%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,252,902

CSS custom property--colour: #CA3926;

Brightness & contrast

Relative luminance0.15623WCAG 2.x, 0 is black and 1 is white

Perceived brightness119.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.09:1

Contrast with white5.09:1WCAG normal text: AA

Contrast with black4.12:1WCAG normal text: Fail

Greyscale equivalent#565656

Inverted#35C6D9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#655A22no red cones; affects about 1% of men; ΔE 60.7 from the original

Deuteranopia#887A1Fno green cones; the most common form, about 1% of men; ΔE 61.3 from the original

Tritanopia#DF0036no blue cones; rare, and affects men and women equally; ΔE 18.8 from the original

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

Contrast with white, large text5.09:1WCAG large text: AAA

Contrast with black, large text4.12:1WCAG large text: AA

Named colours

Firebrick · ΔE 9.9 Tomato · ΔE 16 Brown · ΔE 17.6 Crimson · ΔE 18.4 Dark red · ΔE 19.3 Maroon · ΔE 23.3

Nearest named CSS colourFirebrick (#B22222)ΔE 9.93, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#26B7CA

Analogous#CA2665, #CA8B26

Triadic#26CA39, #3926CA

Split complementary#26CA8B, #2665CA

Tetradic#65CA26, #26B7CA, #8B26CA

Tints, shades & saturation

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

Lighter +40%#F5CDC7

Lighter +30%#ECA69D

Lighter +20%#E47F72

Lighter +10%#DC5847

Darker −10%#9F2D1E

Darker −20%#742116

Darker −30%#49150E

Darker −40%#1E0906

More saturated +25%#E82208

Less saturated −25%#AC5044

Channel breakdown

R202

G57

B38

Red202 (79.2%)

Green57 (22.4%)

Blue38 (14.9%)

Hue6.95°

Saturation (HSL)68.33%

Lightness47.06%

Dominant channelRed

Hex per channelR CA · G 39 · B 26

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

Ca3926 (chemical formula)

Formula
157,346.228 g/mol
3926 atoms

Ca3926 has a molar mass of 157,346.228 g/mol, made up of 3926 atoms across 1 element: 3926 × Ca.

Open this reading on its own page →

Molar mass

Molar mass157,346.228 g/mol

Total atoms per molecule3926

Distinct elements1

Mass of one molecule2.6127956 × 10^-19 g

Molecules per gram3.8273182 × 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

Ca100%

Calcium (Ca × 3926)157,346.228 g/mol, 100%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Calcium

Nerdulate something else

Nothing in mind? Surprise me · today’s page