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Composed Chrysoprase

#0f9a38
Notes

Composed Chrysoprase (#0F9A38) 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 (138°, 82%, 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0f9a38
RGB
rgb(15, 154, 56)
HSL
hsl(138, 82%, 33%)
HWB
hwb(138 6% 40%)
OKLCH
oklch(59.9% 0.175 146.7)
HSV
hsv(138, 90%, 60%)
LAB
lab(55.58% -54.50 41.00)
LCH
lch(55.58% 68.20 143.05)
CMYK
cmyk(90%, 0%, 64%, 40%)

Etymology

Composed
adjective

The past participle of compose, to arrange together — used as a color modifier for hues that read as deliberate and balanced. Composed black, composed gray: the saturation is moderate, the hue is calmly positioned without aggression. Sits at the bold-and-quiet edge of the grid near settled and resolute.

Chrysoprase
noun

An apple-green variety of chalcedony — colored by trace nickel, mined principally in Australia, Poland, and Madagascar. The color refers to a polished Australian chrysoprase: a saturated, slightly cool yellow-green-blue with the matte translucency of cryptocrystalline silica. Cooler than apple.

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.

#0f9a38
Original
#9c8b2d
Protanopia
#8e8141
Deuteranopia
#009685
Tritanopia
#757575
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
3.68:1
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
5.70:1

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