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Radiant Connacht

#37ac47
Notes

Radiant Connacht (#37AC47) is a true green with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (128°, 52%, 45%) 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
#37ac47
RGB
rgb(55, 172, 71)
HSL
hsl(128, 52%, 45%)
HWB
hwb(128 22% 33%)
OKLCH
oklch(65.7% 0.175 145.4)
HSV
hsv(128, 68%, 67%)
LAB
lab(62.31% -53.30 41.93)
LCH
lch(62.31% 67.82 141.81)
CMYK
cmyk(68%, 0%, 59%, 33%)

Etymology

Radiant
adjective

From the Latin radiare, to emit rays — used as a color word since the seventeenth century for hues that read as luminous and emitting. Radiant gold, radiant pink: the implication is high luminance combined with the optical impression of an outward light. Sits in the bright-bucket center alongside glowing.

Connacht
noun

The western Irish province — and the saturated deep green of Connacht hillsides, the Tuath Dé Connacht mythological homeland, and the green-and-white provincial banner. Connacht refers to a County Galway hillside in May: a saturated, slightly cool deep green with the matte finish of Atlantic-coast pasture.

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.

#37ac47
Original
#af9d3d
Protanopia
#a1934f
Deuteranopia
#10a896
Tritanopia
#8c8c8c
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).
Failon White
2.94:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.15:1

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