colors
Back to gallery

Reinforced Beech

#1fa637
Notes

Reinforced Beech (#1FA637) is a true green with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (131°, 69%, 39%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1fa637
RGB
rgb(31, 166, 55)
HSL
hsl(131, 69%, 39%)
HWB
hwb(131 12% 35%)
OKLCH
oklch(63.4% 0.187 145.2)
HSV
hsv(131, 81%, 65%)
LAB
lab(59.74% -56.94 46.12)
LCH
lch(59.74% 73.27 140.99)
CMYK
cmyk(81%, 0%, 67%, 35%)

Etymology

Reinforced
adjective

Latin re- plus inforce — past-participle of reinforce. As a color modifier, reinforced implies a saturated-and-doubled-up-and-strengthened quality where the hue carries layered pigmentation for maximum visual presence. Sits at the bold-and-fortified end of the grid, parallel to fortified and buttressed.

Beech
noun

The genus Fagus — particularly F. sylvatica, the European beech — a deciduous tree whose smooth gray bark and golden-green spring foliage define European temperate woodland. The color refers to fresh beech foliage in May: a saturated, slightly yellow yellow-green with the satin finish of new leaf surface.

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.

#1fa637
Original
#a99629
Protanopia
#9a8c41
Deuteranopia
#00a28f
Tritanopia
#818181
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
3.20:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.57:1

Related Colors

Canvas