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Unblemished Stockholm

#43cdd8
Notes

Unblemished Stockholm (#43CDD8) 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 (184°, 66%, 55%) 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
#43cdd8
RGB
rgb(67, 205, 216)
HSL
hsl(184, 66%, 55%)
HWB
hwb(184 26% 15%)
OKLCH
oklch(78.0% 0.116 202.8)
P3
color(display-p3 0.4296 0.7930 0.8381)
HSV
hsv(184, 69%, 85%)
LAB
lab(75.95% -32.80 -16.22)
LCH
lch(75.95% 36.59 206.31)
CMYK
cmyk(69%, 5%, 0%, 15%)

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.

Stockholm
noun

The Swedish capital — and the deep blue of the Stockholm archipelago (24,000 islands) lagoon water and Drottningholm Palace azure interiors. Stockholm color refers to mid-depth Baltic archipelago water at Sandhamn: a saturated, slightly cool deep blue with the optical depth of cold-temperate brackish 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.

#43cdd8
Original
#bdc4d9
Protanopia
#a8b4d9
Deuteranopia
#00d5d0
Tritanopia
#b0b0b0
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
1.92:1
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
10.96:1

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
##43CDD8
Display P3
Display P3
color(display-p3 0.4296 0.7930 0.8381)
P3 has subtle headroomOKLCH chroma 0.116

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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