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Antique Paraiba

#648a85
Notes

Antique Paraiba (#648A85) is a true teal with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (172°, 16%, 47%) places it in the muted 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
#648a85
RGB
rgb(100, 138, 133)
HSL
hsl(172, 16%, 47%)
HWB
hwb(172 39% 46%)
OKLCH
oklch(60.4% 0.043 186.0)
P3
color(display-p3 0.4235 0.5370 0.5211)
HSV
hsv(172, 28%, 54%)
LAB
lab(54.64% -14.30 -1.60)
LCH
lch(54.64% 14.39 186.38)
CMYK
cmyk(28%, 0%, 4%, 46%)

Etymology

Antique
adjective

Latin antiquus, ancient — used as a color modifier since the seventeenth century for hues that read as if from a previous era. Antique brass, antique rose: moderate-to-low saturation combined with the optical impression of historical patina. Sits at the hushed-bucket alongside aged and heritage.

Paraiba
noun

The intensely-blue copper-bearing variety of tourmaline — discovered in 1989 in the Brazilian state of Paraíba. Paraiba tourmaline is one of the most expensive gem materials by weight. The color refers to a faceted Paraiba tourmaline: a saturated, slightly cool electric blue-green with the gem's signature internal fire.

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.

#648a85
Original
#868685
Protanopia
#7f8186
Deuteranopia
#588c88
Tritanopia
#828282
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).
AA Largeon White
3.81:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.52:1

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
##648A85
Display P3
Display P3
color(display-p3 0.4235 0.5370 0.5211)
Inside sRGBOKLCH chroma 0.043

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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