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Iridescent Smeraldina

#04c28c
Notes

Iridescent Smeraldina (#04C28C) 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 (163°, 96%, 39%) 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
#04c28c
RGB
rgb(4, 194, 140)
HSL
hsl(163, 96%, 39%)
HWB
hwb(163 2% 24%)
OKLCH
oklch(72.1% 0.152 164.6)
HSV
hsv(163, 98%, 76%)
LAB
lab(69.82% -53.58 15.90)
LCH
lch(69.82% 55.89 163.47)
CMYK
cmyk(98%, 0%, 28%, 24%)

Etymology

Iridescent
adjective

Latin Īris, rainbow — adjectival suffix -escent, named for the Greek goddess of the rainbow. As a color modifier, iridescent implies a saturated-and-multi-spectrum-shifting quality, the bright color of peacock-feather-and-soap-bubble structurally-colored-and-thin-film optical-interference patterns. Sits at the bright-and-shifting end of the grid, parallel to prismatic and holographic in usage.

Smeraldina
noun

The Italian diminutive of smeraldo — a literary and theatrical name (Smeraldina is the Commedia dell'arte servant character) for a soft pale emerald-green. The color refers to a smeraldina-dyed Venetian silk: a soft, slightly cool pale green with the satin finish of dyed silk. Lighter than smeraldo.

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.

#04c28c
Original
#beb389
Protanopia
#aba590
Deuteranopia
#00c2b3
Tritanopia
#969696
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
2.31:1
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
9.10:1

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