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Steadfast Heath

#338339
Notes

Steadfast Heath (#338339) is a true green 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 (125°, 44%, 36%) places it in the balanced 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#338339
RGB
rgb(51, 131, 57)
HSL
hsl(125, 44%, 36%)
HWB
hwb(125 20% 49%)
OKLCH
oklch(54.3% 0.134 144.7)
HSV
hsv(125, 61%, 51%)
LAB
lab(48.55% -40.47 32.50)
LCH
lch(48.55% 51.91 141.24)
CMYK
cmyk(61%, 0%, 56%, 49%)

Etymology

Steadfast
adjective

Old English stede-fæst, fixed in place — sharing root with German stetig. As a color modifier, steadfast implies a saturated-and-unwavering quality where the hue maintains its visual character without modulation. Sits at the bold-and-firm end of the grid, parallel to unwavering and firm in usage.

Heath
noun

An open uncultivated land covered by heather (Calluna), gorse (Ulex), and grass — particularly the lowland heaths of southern England. Heath color refers to a Surrey heath in early summer: a soft, slightly muted deep yellow-green with the matte finish of woody-and-grass undergrowth.

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

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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.

#338339
Original
#857832
Protanopia
#7b713f
Deuteranopia
#238072
Tritanopia
#6d6d6d
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).
AAon White
4.72:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.45:1

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