colors
Back to gallery

Effective Domus Turquoise

#45dad0
Notes

Effective Domus Turquoise (#45DAD0) 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 (176°, 67%, 56%) 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
#45dad0
RGB
rgb(69, 218, 208)
HSL
hsl(176, 67%, 56%)
HWB
hwb(176 27% 15%)
OKLCH
oklch(80.9% 0.124 188.5)
P3
color(display-p3 0.4534 0.8433 0.8130)
HSV
hsv(176, 68%, 85%)
LAB
lab(79.59% -40.78 -6.49)
LCH
lch(79.59% 41.29 189.04)
CMYK
cmyk(68%, 0%, 5%, 15%)

Etymology

Effective
adjective

Latin effectīvus, productive — adjectival suffix -ive. As a color modifier, effective implies a clear-and-purpose-achieving quality where the hue carries the visual register of successful-task-completion design-element. Sits at the crisp-and-functional end of the grid, parallel to practical and useful in usage.

Domus
modifier

Latin domus, house-or-home. As a color modifier, domus implies a Latin-house-and-Roman-domus-and-atrium quality, the visual register of Pompeian-domus-and-Roman-atrium hand-Latin-house-and-Roman-domus-and-atrium Pompeian-domus-and-Roman-atrium-and-impluvium domus-and-Latin-house surfaces under Pompeian-domus-and-Roman-atrium-and-impluvium Pompeian-and-Herculaneum-domus Roman-villa-light. Sits at the modifier-and-Latin end of the grid, parallel to arbor and via 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.

#45dad0
Original
#cecfd0
Protanopia
#b8bfd1
Deuteranopia
#00dfd7
Tritanopia
#bababa
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
12.19:1

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
##45DAD0
Display P3
Display P3
color(display-p3 0.4534 0.8433 0.8130)
P3 has subtle headroomOKLCH chroma 0.124

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.

Related Colors

Canvas