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Unblemished Corsica

#42ba9f
Notes

Unblemished Corsica (#42BA9F) 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 (167°, 48%, 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
#42ba9f
RGB
rgb(66, 186, 159)
HSL
hsl(167, 48%, 49%)
HWB
hwb(167 26% 27%)
OKLCH
oklch(71.5% 0.114 175.1)
P3
color(display-p3 0.3987 0.7197 0.6280)
HSV
hsv(167, 65%, 73%)
LAB
lab(68.59% -39.78 3.92)
LCH
lch(68.59% 39.97 174.37)
CMYK
cmyk(65%, 0%, 15%, 27%)

Etymology

Unblemished
adjective

Old French blesmir, to wound — negative-prefix un- plus past-participle of blemish. As a color modifier, unblemished implies a clear-and-flawless quality where the hue carries no defect or imperfection. Sits at the crisp-and-clean end of the grid, parallel to pristine and spotless in usage.

Corsica
noun

The French Mediterranean island — and the saturated blue-green of Corsican calanques (rocky coves) at Calanche de Piana and Bonifacio. Corsica refers to a Bonifacio cove at midday: a saturated, slightly cool deep blue-green with the optical clarity of cold Tyrrhenian Sea water.

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.

#42ba9f
Original
#b4af9e
Protanopia
#a2a2a1
Deuteranopia
#00bcb2
Tritanopia
#9f9f9f
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
2.40:1
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
8.76:1

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
##42BA9F
Display P3
Display P3
color(display-p3 0.3987 0.7197 0.6280)
P3 has subtle headroomOKLCH chroma 0.114

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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