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Cavalier Brittany

#4f990a
Notes

Cavalier Brittany (#4F990A) is a deep lime 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 (91°, 88%, 32%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#4f990a
RGB
rgb(79, 153, 10)
HSL
hsl(91, 88%, 32%)
HWB
hwb(91 4% 40%)
OKLCH
oklch(61.1% 0.176 135.2)
P3
color(display-p3 0.3824 0.5931 0.1798)
HSV
hsv(91, 93%, 60%)
LAB
lab(56.55% -44.51 57.32)
LCH
lch(56.55% 72.57 127.83)
CMYK
cmyk(48%, 0%, 93%, 40%)

Etymology

Cavalier
adjective

Italian cavaliere, horseman / knight via Latin caballārius. As a color modifier, cavalier implies a saturated-and-chivalrous-and-aristocratic quality, the deep-rich color of English-Civil-War royalist Cavalier military-faction velvet-and-lace-and-feathered-hat livery. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and knightly.

Brittany
noun

The Celtic French peninsula — and the saturated green of Breton hillsides, triskel embroidery, and the Bretagne verte (green Brittany) of inland farmland. Brittany refers to a Breton hillside in spring: a saturated, slightly cool deep green with the matte finish of high-rainfall Atlantic 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.

#4f990a
Original
#9f8b00
Protanopia
#958522
Deuteranopia
#4c9382
Tritanopia
#7f7f7f
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).
AA Largeon White
3.56:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.89:1

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
##4F990A
Display P3
Display P3
color(display-p3 0.3824 0.5931 0.1798)
P3 has subtle headroomOKLCH chroma 0.176

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.

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