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Combustive Verdant

#21c58b
Notes

Combustive Verdant (#21C58B) is a true teal with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (159°, 71%, 45%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#21c58b
RGB
rgb(33, 197, 139)
HSL
hsl(159, 71%, 45%)
HWB
hwb(159 13% 23%)
OKLCH
oklch(73.1% 0.153 162.5)
P3
color(display-p3 0.3682 0.7613 0.5618)
HSV
hsv(159, 83%, 77%)
LAB
lab(70.95% -53.36 18.03)
LCH
lch(70.95% 56.33 161.33)
CMYK
cmyk(83%, 0%, 29%, 23%)

Etymology

Combustive
adjective

Latin combūstus, burnt — adjectival suffix -ive, derived from com-burere (to burn-up). As a color modifier, combustive implies a saturated-and-burning-active quality, the bright color of blast-furnace-and-foundry combustion-chamber emission. Sits at the bright-and-warm end of the grid, parallel to fiery and blazing in usage.

Verdant
noun

From the Latin viridis, green, through the French verdoyant. Verdant describes lushness — the saturated chlorophyll greenness of a thoroughly watered landscape after rain. The color refers to that idealized peak-summer green: a saturated, slightly cool green with the optical density of fully irrigated foliage. Deeper than meadow, cooler than basil, with the literary weight of a word that almost always appears in pastoral or paradisiacal contexts.

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.

#21c58b
Original
#c2b688
Protanopia
#afa88f
Deuteranopia
#00c5b5
Tritanopia
#9e9e9e
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
2.23:1
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
9.42:1

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
##21C58B
Display P3
Display P3
color(display-p3 0.3682 0.7613 0.5618)
P3 has subtle headroomOKLCH chroma 0.153

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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