## Stiles & Burch (1959) 10-deg chromaticity coordinates

### Data key

**Columns**

- Wavenumber (cm
^{-1})
- Wavelength (nm)
*r*_{10}*(**λ)*
chromaticity coordinate
*g*_{10}*(**λ)*
chromaticity coordinate
*b*_{10}*(**λ)*
chromaticity coordinate

### Notes

These chromaticity coordinates are related to the
Stiles & Burch (1959) 10-deg CMFs by

where ,
,
and are the chromaticity coordinates, and ,
and are the CMFs.

For more details refer to the Stiles & Burch 10 deg CMFs page.

The
chromaticity coordinates tabulated here are from Table 1(5.5.4) of Wyszecki and
Stiles (1982). The chromaticity coordinates calculated directly from the 10 deg CMFs also in Table 1(5.5.4)
differ slightly from these values. We suspect that these differences arise
because Stiles & Burch calculated the chromaticity coordinates of Table
1(5.5.4) from CMFs of a higher precision than the ones tabulated in Table
1(5.5.4).

### References

Stiles, W. S. & Burch, J. M. (1959). NPL
colour-matching investigation: Final report. *Optica Acta*, *6*,
1-26.

Wyszecki, G., & Stiles, W. S. (1982). Color
Science: concepts and methods, quantitative data and formulae. (2nd ed.). New
York: Wiley.