Recognised as Colour

#CA1005

#CA1005
Red
Dark
Nearest: Firebrick

#CA1005 is a red with RGB values 202, 16, 5 and HSL 3°, 95%, 41%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CA1005#CA1005

HEX#CA1005

RGBrgb(202, 16, 5)

RGB (0–1)0.7922, 0.0627, 0.0196

RGB percentages79.2%, 6.3%, 2%

HSLhsl(3.4, 95.2%, 40.6%)

HSV / HSBhsv(3.4, 97.5%, 79.2%)

CMYK0%, 92.1%, 97.5%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,242,373

CSS custom property--colour: #CA1005;

Brightness & contrast

Relative luminance0.12938WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.85:1

Contrast with white5.85:1WCAG normal text: AA

Contrast with black3.59:1WCAG normal text: Fail

Greyscale equivalent#373737

Inverted#35EFFA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#574C00no red cones; affects about 1% of men; ΔE 71.2 from the original

Deuteranopia#817200no green cones; the most common form, about 1% of men; ΔE 70.5 from the original

Tritanopia#DF0014no blue cones; rare, and affects men and women equally; ΔE 8 from the original

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

Contrast with white, large text5.85:1WCAG large text: AAA

Contrast with black, large text3.59:1WCAG large text: AA

Named colours

Firebrick · ΔE 20.1 Orange red · ΔE 20.6 Red · ΔE 21.7 Crimson · ΔE 22.4 Tomato · ΔE 22.7 Dark red · ΔE 24.7

Nearest named CSS colourFirebrick (#B22222)ΔE 20.11, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#05BFCA

Analogous#CA055D, #CA7205

Triadic#05CA10, #1005CA

Split complementary#05CA72, #055DCA

Tetradic#5DCA05, #05BFCA, #7205CA

Tints, shades & saturation

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

Lighter +40%#FDA49E

Lighter +30%#FB756D

Lighter +20%#FA463B

Lighter +10%#F91609

Darker −10%#980C04

Darker −20%#660803

Darker −30%#350401

Darker −40%#030000

More saturated +25%#CF0C00

Less saturated −25%#B0271F

Channel breakdown

R202

G16

Red202 (79.2%)

Green16 (6.3%)

Blue5 (2%)

Hue3.35°

Saturation (HSL)95.17%

Lightness40.59%

Dominant channelRed

Hex per channelR CA · G 10 · B 05

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ca1005 (chemical formula)

Formula
40,278.39 g/mol
1005 atoms

Ca1005 has a molar mass of 40,278.39 g/mol, made up of 1005 atoms across 1 element: 1005 × Ca.

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Molar mass

Molar mass40,278.39 g/mol

Total atoms per molecule1005

Distinct elements1

Mass of one molecule6.688384 × 10^-20 g

Molecules per gram1.4951295 × 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

Ca100%

Calcium (Ca × 1005)40,278.39 g/mol, 100%

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Elements in this formula

Calcium

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