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Ignited Diatom

#31c78c
Notes

Ignited Diatom (#31C78C) is a true teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (156°, 60%, 49%) 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
#31c78c
RGB
rgb(49, 199, 140)
HSL
hsl(156, 60%, 49%)
HWB
hwb(156 19% 22%)
OKLCH
oklch(73.9% 0.150 161.5)
HSV
hsv(156, 75%, 78%)
LAB
lab(71.82% -52.21 18.73)
LCH
lch(71.82% 55.47 160.26)
CMYK
cmyk(75%, 0%, 30%, 22%)

Etymology

Ignited
adjective

Latin ignīre, to set on fire — past-participle of ignite. As a color modifier, ignited implies a saturated-and-just-started-burning quality, the bright color of match-strike-and-flint-spark initial-combustion emission. Sits at the bright-and-warm end of the grid, parallel to kindled and aflame in usage.

Diatom
noun

Single-celled algae with intricate silica cell walls — among the most numerous photosynthetic organisms on Earth, producing roughly a quarter of global oxygen. The color refers to a diatom-bloom-tinted lake at midday: a soft, slightly cool deep blue-green with the optical complexity of suspended single-celled algae.

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.

#31c78c
Original
#c4b889
Protanopia
#b2ab90
Deuteranopia
#00c6b7
Tritanopia
#a3a3a3
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
2.17:1
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
9.68:1

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