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Primal Curlew

#0c0c3a
Notes

Primal Curlew (#0C0C3A) is a deep blue 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 (240°, 66%, 14%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0c0c3a
RGB
rgb(12, 12, 58)
HSL
hsl(240, 66%, 14%)
HWB
hwb(240 5% 77%)
OKLCH
oklch(19.4% 0.086 274.9)
P3
color(display-p3 0.0471 0.0471 0.2176)
HSV
hsv(240, 79%, 23%)
LAB
lab(5.84% 17.10 -29.23)
LCH
lch(5.84% 33.86 300.33)
CMYK
cmyk(79%, 79%, 0%, 77%)

Etymology

Primal
adjective

Latin prīmālis, first — adjectival suffix -al, derived from prīmus (first). As a color modifier, primal implies a neutral-and-original-and-foundational quality where the hue carries the visual register of cave-painting-and-prehistoric-art original-and-foundational-mineral-pigment color-decision. Sits at the neutral-and-foundational end of the grid, parallel to primary and primal in usage.

Curlew
noun

Eurasian Numenius arquata — a Scolopacidae shorebird of European-and-North-Asian estuaries-and-grasslands, with deep-mottled-brown-gray plumage and a long down-curved bill. Curlew color refers to a Numenius arquata dorsal-feather field in autumn-overcast light: a dark cool-gray with the matte finish of melanin-and-buff-dorsal-stripe structurally-colored feather barbs.

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.

#0c0c3a
Original
#00153b
Protanopia
#001139
Deuteranopia
#001821
Tritanopia
#0f0f0f
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
18.60:1
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
1.13:1

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
##0C0C3A
Display P3
Display P3
color(display-p3 0.0471 0.0471 0.2176)
P3 has subtle headroomOKLCH chroma 0.086

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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