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Pragmatic Frost

#0c5f76
Notes

Pragmatic Frost (#0C5F76) is a deep cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (193°, 82%, 25%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#0c5f76
RGB
rgb(12, 95, 118)
HSL
hsl(193, 82%, 25%)
HWB
hwb(193 5% 54%)
OKLCH
oklch(45.2% 0.080 222.9)
P3
color(display-p3 0.1654 0.3668 0.4533)
HSV
hsv(193, 90%, 46%)
LAB
lab(37.06% -14.12 -19.47)
LCH
lch(37.06% 24.05 234.04)
CMYK
cmyk(90%, 19%, 0%, 54%)

Etymology

Pragmatic
adjective

Greek pragmatikós, of business / practical — adjectival suffix -ic. As a color modifier, pragmatic implies a clear-and-purpose-fit-and-no-nonsense quality where the hue carries the visual register of straightforward-utilitarian-and-functional decision-making. Sits at the crisp-and-functional end of the grid, parallel to practical and functional in usage.

Frost
noun

The ice crystals that condense from atmospheric moisture onto cold surfaces — windowpanes, leaves, the windshield of a parked car at dawn. The color is barely a color: a very pale, slightly green-shifted blue with the optical brightness of micron-scale crystals scattering light. Lighter than glacier, warmer than ice, with the agricultural-calendar weight of a phenomenon that defines the growing season.

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.

#0c5f76
Original
#525d77
Protanopia
#445376
Deuteranopia
#006666
Tritanopia
#4f4f4f
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).
AAAon White
7.21:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.91:1

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
##0C5F76
Display P3
Display P3
color(display-p3 0.1654 0.3668 0.4533)
P3 has subtle headroomOKLCH chroma 0.080

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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