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Authoritative Laurel

#37a317
Notes

Authoritative Laurel (#37A317) is a true 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 (106°, 75%, 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
#37a317
RGB
rgb(55, 163, 23)
HSL
hsl(106, 75%, 36%)
HWB
hwb(106 9% 36%)
OKLCH
oklch(62.9% 0.194 140.2)
HSV
hsv(106, 86%, 64%)
LAB
lab(59.04% -54.28 56.56)
LCH
lch(59.04% 78.39 133.82)
CMYK
cmyk(66%, 0%, 86%, 36%)

Etymology

Authoritative
adjective

Latin auctōritāt-, authority — adjectival suffix -ive. As a color modifier, authoritative implies a saturated-and-formal-imperative quality where the hue carries decisional weight and institutional credibility. Sits at the bold-and-authoritative end of the grid, parallel to commanding and magisterial in usage.

Laurel
noun

Laurus nobilis, the bay laurel of the Mediterranean — sacred to Apollo and the source of the wreaths that crowned poets, generals, and Olympic victors. The color refers to mature laurel leaves: a deep, glossy green with the high shine of waxy cuticle and the slight blue-shift of dense chlorophyll. Darker than spinach, cooler than holly, with the classical weight of a tree that names poet laureate.

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.

#37a317
Original
#a89300
Protanopia
#9b8b2a
Deuteranopia
#259d8a
Tritanopia
#828282
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
3.27:1
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
6.41:1

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