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Austere Romaine

#31500a
Notes

Austere Romaine (#31500A) 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 (87°, 78%, 18%) 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
#31500a
RGB
rgb(49, 80, 10)
HSL
hsl(87, 78%, 18%)
HWB
hwb(87 4% 69%)
OKLCH
oklch(39.2% 0.101 131.5)
HSV
hsv(87, 88%, 31%)
LAB
lab(30.43% -23.50 34.29)
LCH
lch(30.43% 41.57 124.42)
CMYK
cmyk(39%, 0%, 88%, 69%)

Etymology

Austere
adjective

Latin austērus, harsh / bitter. As a color modifier, austere implies a deep-and-stripped-down formality, the dark plain-textile color of Bauhaus and Cistercian monastic interior aesthetic. Sits at the deep-and-formal end of the grid, parallel to stern and severe in tone.

Romaine
noun

Lactuca sativa var. longifolia, the upright lettuce variety whose tall green-and-white heads are essential to Caesar salad. Named for Rome, where the Romans cultivated it for European salad tradition. The color refers to a fresh romaine leaf: a soft, slightly cool yellow-green with the satin finish of dewy lettuce.

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.

#31500a
Original
#544900
Protanopia
#504712
Deuteranopia
#324c43
Tritanopia
#444444
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).
AAAon White
9.20:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.28:1

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