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Phosphoric Kimono Turquoise

#1fdcd3
Notes

Phosphoric Kimono Turquoise (#1FDCD3) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (177°, 75%, 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1fdcd3
RGB
rgb(31, 220, 211)
HSL
hsl(177, 75%, 49%)
HWB
hwb(177 12% 14%)
OKLCH
oklch(80.9% 0.136 189.5)
P3
color(display-p3 0.4077 0.8502 0.8239)
HSV
hsv(177, 86%, 86%)
LAB
lab(79.71% -44.51 -7.97)
LCH
lch(79.71% 45.21 190.15)
CMYK
cmyk(86%, 0%, 4%, 14%)

Etymology

Phosphoric
adjective

Greek phōsphóros, light-bringer — adjectival suffix -ic. As a color modifier, phosphoric implies a saturated-and-cool-glow quality, the bright color of match-tip-strike and firefly phosphorus-emission luminescence. Sits at the bright-and-cool end of the grid, parallel to phosphorescent and fluorescent in usage.

Kimono
modifier

Japanese kimono, thing-to-wear. As a color modifier, kimono implies a Japanese-kimono-and-furisode-and-tomesode quality, the visual register of Edo-and-Heian-kimono-and-furisode hand-Japanese-kimono-and-furisode-and-tomesode Edo-and-Heian-kimono-and-furisode-and-Kyoto-Nishijin kimono-and-Japanese-kimono-and-furisode surfaces under Edo-and-Heian-kimono-and-furisode-and-Kyoto-Nishijin Heian-Kyoto-and-Edo-Tokugawa Japanese-court-light. Sits at the modifier-and-textile end of the grid, parallel to haori and sari 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.

#1fdcd3
Original
#cfd0d3
Protanopia
#b7bed4
Deuteranopia
#00e2d9
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
1.72:1
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
12.24:1

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
##1FDCD3
Display P3
Display P3
color(display-p3 0.4077 0.8502 0.8239)
P3 has subtle headroomOKLCH chroma 0.136

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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