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Effulgent Mater Turquoise

#1fd5c0
Notes

Effulgent Mater Turquoise (#1FD5C0) 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 (173°, 75%, 48%) 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
#1fd5c0
RGB
rgb(31, 213, 192)
HSL
hsl(173, 75%, 48%)
HWB
hwb(173 12% 16%)
OKLCH
oklch(78.6% 0.136 182.2)
P3
color(display-p3 0.3950 0.8231 0.7537)
HSV
hsv(173, 85%, 84%)
LAB
lab(77.09% -46.77 -1.67)
LCH
lch(77.09% 46.80 182.05)
CMYK
cmyk(85%, 0%, 10%, 16%)

Etymology

Effulgent
adjective

Latin effulgēns, shining-out — present-participle of effulgere, sharing root with fulgor (lightning). As a color modifier, effulgent implies a saturated-and-radiating-light-out quality, the bright color of Renaissance-Madonna halo-and-aureole gold-leaf-and-pigment emission. Sits at the bright-and-saturated end of the grid, parallel to resplendent and radiant in usage.

Mater
modifier

Latin mater, mother. As a color modifier, mater implies a Latin-mother-and-Stabat-Mater-and-Madonna quality, the visual register of Stabat-Mater-and-Pietà-mater hand-Latin-mother-and-Stabat-Mater-and-Madonna Stabat-Mater-and-Pietà-mater-and-Marian-iconography mater-and-Latin-mother surfaces under Stabat-Mater-and-Pietà-mater-and-Marian-iconography Roman-and-Counter-Reformation Madonna-iconographic-light. Sits at the modifier-and-Latin end of the grid, parallel to pater and amor 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.

#1fd5c0
Original
#cbc8bf
Protanopia
#b4b7c2
Deuteranopia
#00d9ce
Tritanopia
#adadad
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
1.85:1
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
11.34:1

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
##1FD5C0
Display P3
Display P3
color(display-p3 0.3950 0.8231 0.7537)
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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