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Ignited Firmament

#37ecf1
Notes

Ignited Firmament (#37ECF1) is a true cyan with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (182°, 87%, 58%) 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
#37ecf1
RGB
rgb(55, 236, 241)
HSL
hsl(182, 87%, 58%)
HWB
hwb(182 22% 5%)
OKLCH
oklch(86.0% 0.137 197.8)
HSV
hsv(182, 77%, 95%)
LAB
lab(85.58% -41.22 -15.07)
LCH
lch(85.58% 43.89 200.09)
CMYK
cmyk(77%, 2%, 0%, 5%)

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.

Firmament
noun

The biblical sky-vault — and God called the firmament Heaven (Genesis). Firmament in literary and religious color vocabulary refers to the saturated deep blue of the cloudless midday sky as seen from a desert or mountain: a saturated, slightly cool deep blue with the optical brightness of a clear high-altitude atmosphere.

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.

#37ecf1
Original
#dbe1f2
Protanopia
#c1cef2
Deuteranopia
#00f4ed
Tritanopia
#c6c6c6
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
1.46:1
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
14.43:1

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