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Hyper Firuzeh

#1fe9b9
Notes

Hyper Firuzeh (#1FE9B9) 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 (166°, 82%, 52%) 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
#1fe9b9
RGB
rgb(31, 233, 185)
HSL
hsl(166, 82%, 52%)
HWB
hwb(166 12% 9%)
OKLCH
oklch(83.3% 0.160 170.4)
P3
color(display-p3 0.4314 0.9004 0.7360)
HSV
hsv(166, 87%, 91%)
LAB
lab(82.95% -56.69 10.51)
LCH
lch(82.95% 57.66 169.50)
CMYK
cmyk(87%, 0%, 21%, 9%)

Etymology

Hyper
adjective

Greek hyper, over / beyond — sharing root with Latin super. As a color modifier, hyper implies a saturated-and-over-the-top-active quality where the hue exceeds normal visual amplitude with maximum-stimulation register. Sits at the bright-and-over-active end of the grid, parallel to manic and frenetic in usage.

Firuzeh
noun

The Persian word for turquoise — sourced from the Nishapur mines of Iran, used in Persian, Mughal, and Ottoman tile and jewelry for over four thousand years. Firuzeh tile defines the domes of the Shah Mosque in Isfahan. The color refers to fine Persian firuzeh: a saturated, slightly cool deep blue-green with the matte finish of fired faience.

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.

#1fe9b9
Original
#e2d9b7
Protanopia
#cbc8bc
Deuteranopia
#00ebdb
Tritanopia
#bbbbbb
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
1.57:1
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
13.41:1

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
##1FE9B9
Display P3
Display P3
color(display-p3 0.4314 0.9004 0.7360)
P3 has subtle headroomOKLCH chroma 0.160

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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