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Combustive Phuket

#18cf99
Notes

Combustive Phuket (#18CF99) 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 (162°, 79%, 45%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#18cf99
RGB
rgb(24, 207, 153)
HSL
hsl(162, 79%, 45%)
HWB
hwb(162 9% 19%)
OKLCH
oklch(75.9% 0.155 165.6)
HSV
hsv(162, 88%, 81%)
LAB
lab(74.26% -54.66 15.15)
LCH
lch(74.26% 56.72 164.50)
CMYK
cmyk(88%, 0%, 26%, 19%)

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.

Phuket
noun

The Thai island in the Andaman Sea — and the saturated turquoise of Phuket's western beach water at Patong and Karon. Phuket refers to the beach water at midday: a saturated, slightly cool deep blue-green with the optical clarity of warm tropical-Asian water.

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

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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.

#18cf99
Original
#cabf96
Protanopia
#b6b19d
Deuteranopia
#00cfc0
Tritanopia
#a4a4a4
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
2.01:1
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
10.42:1

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