Recognised as Colour
#CB7C31
- #CB7C31
- Orange
- Dark
- Nearest: Peru
#CB7C31 is a orange with RGB values 203, 124, 49 and HSL 29°, 61%, 49%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Peru.
Colour values
#CB7C31#CB7C31
HEX#CB7C31
RGBrgb(203, 124, 49)
RGB (0–1)0.7961, 0.4863, 0.1922
RGB percentages79.6%, 48.6%, 19.2%
HSLhsl(29.2, 61.1%, 49.4%)
HSV / HSBhsv(29.2, 75.9%, 79.6%)
CMYK0%, 38.9%, 75.9%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,335,601
CSS custom property--colour: #CB7C31;
Brightness & contrast
Relative luminance0.27334WCAG 2.x, 0 is black and 1 is white
Perceived brightness147 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.47:1
Contrast with white3.25:1WCAG normal text: Fail
Contrast with black6.47:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#3483CE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.25:1WCAG large text: AA
Contrast with black, large text6.47:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3180CB
Analogous#CB3133, #CBC931
Triadic#31CB7C, #7C31CB
Split complementary#31CBC9, #3133CB
Tetradic#33CB31, #3180CB, #C931CB
Tints, shades & saturation
Channel breakdown
R203
G124
B49
Red203 (79.6%)
Green124 (48.6%)
Blue49 (19.2%)
Hue29.22°
Saturation (HSL)61.11%
Lightness49.41%
Dominant channelRed
Hex per channelR CB · G 7C · B 31
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Harmonies
Similar named colours
Also reads as
CB7C31 (chemical formula)
- Formula
- 460.022 g/mol
- 39 atoms
CB7C31 has a molar mass of 460.022 g/mol, made up of 39 atoms across 2 elements: 32 × C, 7 × B.
Molar mass
Molar mass460.022 g/mol
Total atoms per molecule39
Distinct elements2
Mass of one molecule7.638845 × 10^-22 g
Molecules per gram1.3090984 × 10^21
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
C83.6%
B16.4%
Carbon (C × 32)384.352 g/mol, 83.551%
Boron (B × 7)75.67 g/mol, 16.449%
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