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Sharp Canary

#99b919
Notes

Sharp Canary (#99B919) is a true yellow with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (72°, 76%, 41%) places it in the highly saturated band at a mid 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#99b919
RGB
rgb(153, 185, 25)
HSL
hsl(72, 76%, 41%)
HWB
hwb(72 10% 27%)
OKLCH
oklch(73.6% 0.172 121.6)
P3
color(display-p3 0.6247 0.7218 0.2463)
HSV
hsv(72, 86%, 73%)
LAB
lab(70.55% -30.15 67.90)
LCH
lch(70.55% 74.29 113.95)
CMYK
cmyk(17%, 0%, 86%, 27%)

Etymology

Sharp
adjective

Old English scearp, cutting, pointed — applied metaphorically to color since the seventeenth century for hues that read as definite and edge-defined. Sharp red, sharp green: the implication is saturation combined with high-contrast crispness. Sits in the bright-bucket center alongside crisp and clear, with a slightly more incisive edge.

Canary
noun

The domesticated Serinus canaria, bred in the Canary Islands and exported to European cages from the seventeenth century. The wild bird is greenish; centuries of selective breeding produced the saturated yellow of the modern canary. The color is the breast feathers of a yellow domestic canary: a clean, bright yellow with the slight orange shift of carotenoid pigment in feathers, identical chemistry to the carotenes in flamingo plumage.

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.

#99b919
Original
#c5ad00
Protanopia
#c1ad2d
Deuteranopia
#a2af9e
Tritanopia
#a7a7a7
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
2.26:1
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
9.31:1

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
##99B919
Display P3
Display P3
color(display-p3 0.6247 0.7218 0.2463)
P3 has subtle headroomOKLCH chroma 0.172

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

Related Colors

Canvas