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Robust Rosemary

#04a312
Notes

Robust Rosemary (#04A312) 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 (125°, 95%, 33%) 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
#04a312
RGB
rgb(4, 163, 18)
HSL
hsl(125, 95%, 33%)
HWB
hwb(125 2% 36%)
OKLCH
oklch(62.1% 0.207 143.0)
HSV
hsv(125, 98%, 64%)
LAB
lab(58.29% -60.90 56.73)
LCH
lch(58.29% 83.23 137.03)
CMYK
cmyk(98%, 0%, 89%, 36%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Rosemary
noun

Salvia rosmarinus, the woody-stemmed Mediterranean shrub whose Latin name means dew of the sea for its preference for coastal habitat. The color refers to mature rosemary needles in summer: a deep, slightly muted green with the resinous finish of a leaf full of camphor and eucalyptol. Drabber than basil, warmer than thyme, with the kitchen-and-garden weight of a herb used for poultry, lamb, and remembrance.

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.

#04a312
Original
#a79200
Protanopia
#988828
Deuteranopia
#009e8a
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
3.36:1
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
6.25:1

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