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Highborn Flurry Emerald

#21941c
Notes

Highborn Flurry Emerald (#21941C) is a true green 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 (118°, 68%, 35%) 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
#21941c
RGB
rgb(33, 148, 28)
HSL
hsl(118, 68%, 35%)
HWB
hwb(118 11% 42%)
OKLCH
oklch(58.2% 0.182 142.4)
P3
color(display-p3 0.2830 0.5720 0.1973)
HSV
hsv(118, 81%, 58%)
LAB
lab(53.58% -53.17 50.00)
LCH
lch(53.58% 72.98 136.76)
CMYK
cmyk(78%, 0%, 81%, 42%)

Etymology

Highborn
adjective

Old English hēah-boren, high-born — past-participle of bear. As a color modifier, highborn implies a saturated-and-aristocratic-and-elite quality, the deep-rich color of pre-modern English high-born aristocratic-class livery-and-armorial bearings. Sits at the bold-and-aristocratic end of the grid, parallel to noble and aristocratic in usage.

Flurry
modifier

Imitative origin, quick-burst-of-snow. As a color modifier, flurry implies a quick-burst-of-snow-and-light-and-fluttering quality, the visual register of Adirondack-and-Vermont-flurry hand-quick-burst-of-snow-and-light-and-fluttering Adirondack-and-Vermont-flurry-and-New-England-snow flurry-and-quick-burst-of-snow surfaces under Adirondack-and-Vermont-flurry-and-New-England-snow Adirondack-and-Green-Mountains-and-White-Mountains New-England-snow-light. Sits at the modifier-and-weather end of the grid, parallel to slush and thaw in usage.

Emerald
noun

A chromium-tinged variety of beryl — the gemstone mined from the Cleopatra-era Mons Smaragdus in Egypt, the Muzo deposits of Colombia, and the Sandawana mines of Zimbabwe. Emerald green refers to a high-clarity faceted emerald with strong color saturation: a saturated, slightly blue-shifted green with the gem's signature internal life. Cooler than fern, warmer than teal, with the heraldic weight of two thousand years of royal favor.

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.

#21941c
Original
#978500
Protanopia
#8b7d2b
Deuteranopia
#008f7e
Tritanopia
#737373
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
3.95:1
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
5.32:1

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
##21941C
Display P3
Display P3
color(display-p3 0.2830 0.5720 0.1973)
P3 has visible headroomOKLCH chroma 0.182

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.

Related Colors

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