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Sunlit Sunbird

#43ba1b
Notes

Sunlit Sunbird (#43BA1B) is a true green with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (105°, 75%, 42%) 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
#43ba1b
RGB
rgb(67, 186, 27)
HSL
hsl(105, 75%, 42%)
HWB
hwb(105 11% 27%)
OKLCH
oklch(69.5% 0.213 139.8)
P3
color(display-p3 0.4007 0.7197 0.2387)
HSV
hsv(105, 85%, 73%)
LAB
lab(66.82% -59.22 62.66)
LCH
lch(66.82% 86.21 133.39)
CMYK
cmyk(64%, 0%, 85%, 27%)

Etymology

Sunlit
adjective

Old English sunne (sun) plus past-participle līehted. As a color modifier, sunlit implies a saturated-and-direct-sunlight-illuminated quality, the bright color of southern-Mediterranean and Greek-island afternoon-sun direct-illumination surface emission. Sits at the bright-and-warm end of the grid, parallel to radiant and brilliant in usage.

Sunbird
noun

The family Nectariniidae — Old World sunbirds, the ecological equivalent of New World hummingbirds. Particularly Cinnyris jugularis (olive-backed sunbird) whose iridescent green throat catches direct sunlight. The color refers to a male sunbird's gorget: a saturated, slightly cool deep green with the iridescent satin finish of structural color.

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.

#43ba1b
Original
#bfa800
Protanopia
#b19f31
Deuteranopia
#31b49e
Tritanopia
#959595
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
2.54:1
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
8.28:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##43BA1B
Display P3
Display P3
color(display-p3 0.4007 0.7197 0.2387)
P3 has visible headroomOKLCH chroma 0.213

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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