Recognised as Colour
#CC361B
- #CC361B
- Red
- Dark
- Nearest: Firebrick
#CC361B is a red with RGB values 204, 54, 27 and HSL 9°, 77%, 45%. 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
#CC361B#CC361B
HEX#CC361B
RGBrgb(204, 54, 27)
RGB (0–1)0.8, 0.2118, 0.1059
RGB percentages80%, 21.2%, 10.6%
HSLhsl(9.2, 76.6%, 45.3%)
HSV / HSBhsv(9.2, 86.8%, 80%)
CMYK0%, 73.5%, 86.8%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,383,195
CSS custom property--colour: #CC361B;
Brightness & contrast
Relative luminance0.15555WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.11:1
Contrast with white5.11:1WCAG normal text: AA
Contrast with black4.11:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#33C9E4
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.11:1WCAG large text: AAA
Contrast with black, large text4.11:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1BB1CC
Analogous#CC1B58, #CC8F1B
Triadic#1BCC36, #361BCC
Split complementary#1BCC8F, #1B58CC
Tetradic#58CC1B, #1BB1CC, #8E1BCC
Tints, shades & saturation
Channel breakdown
R204
G54
B27
Red204 (80%)
Green54 (21.2%)
Blue27 (10.6%)
Hue9.15°
Saturation (HSL)76.62%
Lightness45.29%
Dominant channelRed
Hex per channelR CC · G 36 · B 1B
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Also reads as
CC361B (chemical formula)
- Formula
- 4,358.792 g/mol
- 363 atoms
CC361B has a molar mass of 4,358.792 g/mol, made up of 363 atoms across 2 elements: 362 × C, 1 × B.
Molar mass
Molar mass4,358.792 g/mol
Total atoms per molecule363
Distinct elements2
Mass of one molecule7.2379444 × 10^-21 g
Molecules per gram1.3816077 × 10^20
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
C99.8%
B0.2%
Carbon (C × 362)4,347.982 g/mol, 99.752%
Boron (B)10.81 g/mol, 0.248%
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