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Reinforced Greenfinch

#277e05
Notes

Reinforced Greenfinch (#277E05) 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 (103°, 92%, 26%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#277e05
RGB
rgb(39, 126, 5)
HSL
hsl(103, 92%, 26%)
HWB
hwb(103 2% 51%)
OKLCH
oklch(52.1% 0.165 139.8)
HSV
hsv(103, 96%, 49%)
LAB
lab(46.13% -45.74 49.01)
LCH
lch(46.13% 67.04 133.03)
CMYK
cmyk(69%, 0%, 96%, 51%)

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.

Greenfinch
noun

Chloris chloris, the European finch whose males in breeding plumage are yellow-green with bright yellow wing bars — common in British and Continental hedgerow gardens until trichomonosis collapsed populations in the 2000s. The color refers to a male European greenfinch in spring: a saturated, slightly muted yellow-green with the matte finish of carotenoid-pigmented feathers.

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.

#277e05
Original
#827100
Protanopia
#786b1a
Deuteranopia
#18796a
Tritanopia
#636363
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).
AAon White
5.16:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.07:1

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