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Stalwart Glade

#21700b
Notes

Stalwart Glade (#21700B) is a deep green with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (107°, 82%, 24%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#21700b
RGB
rgb(33, 112, 11)
HSL
hsl(107, 82%, 24%)
HWB
hwb(107 4% 56%)
OKLCH
oklch(47.9% 0.149 140.4)
HSV
hsv(107, 90%, 44%)
LAB
lab(41.11% -41.90 43.36)
LCH
lch(41.11% 60.29 134.02)
CMYK
cmyk(71%, 0%, 90%, 56%)

Etymology

Stalwart
adjective

Old English stǣl-wyrðe, stable-and-worthy. As a color modifier, stalwart implies a saturated-and-loyal-and-firm quality where the hue carries the dependable-and-trustworthy visual presence of a Knight-Templar guard. Sits at the bold-and-firm end of the grid, parallel to steadfast and firm in usage.

Glade
noun

An open clearing in a forest — often grassy, where sunlight reaches the ground unobstructed. The Old English glæd (bright) names the brightness of the clearing relative to its surrounding shade. Glade color refers to a sunlit forest clearing in summer: a saturated, slightly yellow-green with the matte finish of sun-bright grass-and-fern. Lighter than bosco.

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.

#21700b
Original
#736500
Protanopia
#6a5f19
Deuteranopia
#126c5e
Tritanopia
#585858
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
6.20:1
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
3.39:1

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