colors
Back to gallery

Withheld Atacamite

#647d70
Notes

Withheld Atacamite (#647D70) is a true teal with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (149°, 11%, 44%) places it in the muted band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#647d70
RGB
rgb(100, 125, 112)
HSL
hsl(149, 11%, 44%)
HWB
hwb(149 39% 51%)
OKLCH
oklch(56.6% 0.035 162.4)
P3
color(display-p3 0.4117 0.4873 0.4424)
HSV
hsv(149, 20%, 49%)
LAB
lab(50.15% -11.89 4.11)
LCH
lch(50.15% 12.58 160.93)
CMYK
cmyk(20%, 0%, 10%, 51%)

Etymology

Withheld
adjective

Old English with-haldan, to hold-back — past-participle of withhold. As a color modifier, withheld implies a hushed-and-pulled-back-and-not-fully-given quality where the hue carries the visual register of intentionally-restricted-and-reserved color-presentation. Sits at the hushed-and-restrained end of the grid, parallel to restrained and modulated in usage.

Atacamite
noun

A copper-chloride mineral named for the Atacama Desert of Chile where it was first described. Atacamite forms in arid copper-mineral deposits worldwide. The color refers to a clean atacamite crystal: a saturated, slightly cool deep emerald-green with the satin finish of crystallized secondary copper mineral.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#647d70
Original
#7c796f
Protanopia
#787671
Deuteranopia
#5f7d79
Tritanopia
#777777
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
4.46:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.71:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##647D70
Display P3
Display P3
color(display-p3 0.4117 0.4873 0.4424)
Inside sRGBOKLCH chroma 0.035

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

Related Colors

Canvas