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Torrid Atrium Turquoise

#02e4da
Notes

Torrid Atrium Turquoise (#02E4DA) 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 (177°, 98%, 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
#02e4da
RGB
rgb(2, 228, 218)
HSL
hsl(177, 98%, 45%)
HWB
hwb(177 1% 11%)
OKLCH
oklch(82.9% 0.143 189.1)
P3
color(display-p3 0.4076 0.8809 0.8513)
HSV
hsv(177, 99%, 89%)
LAB
lab(82.14% -47.02 -8.11)
LCH
lch(82.14% 47.72 189.78)
CMYK
cmyk(99%, 0%, 4%, 11%)

Etymology

Torrid
adjective

Latin torridus, parched / scorching — sharing root with torrēre (to dry by heat). As a color modifier, torrid implies a saturated-and-tropical-hot quality, the bright color of equatorial-Saharan-and-Sonoran-desert mid-summer high-temperature surface-emission. Sits at the bright-and-warm end of the grid, parallel to scorching and fiery in usage.

Atrium
modifier

Latin atrium, Roman-house-courtyard. As a color modifier, atrium implies a Roman-and-modern-courtyard-with-skylight quality, the visual register of Roman-Pompeii-and-modern-Mid-Century-Modern-atrium hand-built central-courtyard-with-skylight atrium-and-impluvium-and-courtyard architectural surfaces under Roman-and-Mid-Century-Modern atrium-skylight light. Sits at the modifier-and-architecture end of the grid, parallel to loggia and quad in usage.

Turquoise
noun

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.

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.

#02e4da
Original
#d6d7da
Protanopia
#bdc4dc
Deuteranopia
#00eae1
Tritanopia
#b3b3b3
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
1.60:1
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
13.11:1

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
##02E4DA
Display P3
Display P3
color(display-p3 0.4076 0.8809 0.8513)
P3 has subtle headroomOKLCH chroma 0.143

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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