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Truthful Greenfinch

#bff4a4
Notes

Truthful Greenfinch (#BFF4A4) is a soft green with a pastel character. It reads calm and airy, with enough chroma to feel intentional rather than washed out. Its HSL profile (100°, 78%, 80%) places it in the highly saturated band at a light 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
#bff4a4
RGB
rgb(191, 244, 164)
HSL
hsl(100, 78%, 80%)
HWB
hwb(100 64% 4%)
OKLCH
oklch(91.1% 0.118 135.4)
HSV
hsv(100, 33%, 96%)
LAB
lab(90.99% -30.96 33.24)
LCH
lch(90.99% 45.43 132.97)
CMYK
cmyk(22%, 0%, 33%, 4%)

Etymology

Truthful
adjective

Old English trēowth, truth — adjectival suffix -ful. As a color modifier, truthful implies a clear-and-honest-and-direct quality where the hue carries the visual register of accurate-and-faithful-representation declaration. Sits at the crisp-and-honest end of the grid, parallel to candid and honest in usage.

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.

#bff4a4
Original
#fae89f
Protanopia
#f2e3a8
Deuteranopia
#bfeedf
Tritanopia
#e3e3e3
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
1.26:1
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
16.69:1

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