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Forceful Sage

#599c03
Notes

Forceful Sage (#599C03) is a deep lime 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 (86°, 96%, 31%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#599c03
RGB
rgb(89, 156, 3)
HSL
hsl(86, 96%, 31%)
HWB
hwb(86 1% 39%)
OKLCH
oklch(62.3% 0.176 133.3)
HSV
hsv(86, 98%, 61%)
LAB
lab(57.95% -42.52 59.70)
LCH
lch(57.95% 73.29 125.46)
CMYK
cmyk(43%, 0%, 98%, 39%)

Etymology

Forceful
adjective

Old French force, strength — adjectival suffix -ful. As a color modifier, forceful implies a saturated-and-vigorous quality where the hue exerts visual force on its substrate. Sits at the bold-and-saturated end of the grid, parallel to mighty and commanding in tone.

Sage
noun

Salvia officinalis, the Mediterranean kitchen herb whose silvery-green leaves give the color its name. The Latin salvia shares a root with salvuswhole, healthy — for the herb's medieval reputation as a panacea. The color refers to dried sage leaves rubbed for stuffing: a soft, slightly gray-green that's cooler than olive and warmer than mint, with the matte finish of leaf hair under a hand lens.

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.

#599c03
Original
#a38f00
Protanopia
#9a891f
Deuteranopia
#599584
Tritanopia
#838383
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
3.40:1
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
6.18:1

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