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Primal Tinta

#180036
Notes

Primal Tinta (#180036) is a deep indigo 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 (267°, 100%, 11%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#180036
RGB
rgb(24, 0, 54)
HSL
hsl(267, 100%, 11%)
HWB
hwb(267 0% 79%)
OKLCH
oklch(18.0% 0.098 296.7)
P3
color(display-p3 0.0825 0.0039 0.2020)
HSV
hsv(267, 100%, 21%)
LAB
lab(4.16% 24.19 -28.97)
LCH
lch(4.16% 37.75 309.86)
CMYK
cmyk(56%, 100%, 0%, 79%)

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.

Tinta
noun

Spanish tinta, ink — derived from Latin tincta, dyed — the deep-iron-gall-ink black of medieval Spanish manuscript-and-administrative writing, particularly the tinta sevillana high-iron formulation of the Castilian-court chancery. Tinta color refers to a tinta sevillana-written 12th-century Cantigas de Santa Maria manuscript folio: a saturated, slightly cool deep black with the matte finish of iron-gall-and-vitriol ink on hand-finished Spanish parchment.

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.

#180036
Original
#000f37
Protanopia
#000e35
Deuteranopia
#0f0f1b
Tritanopia
#090909
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
19.23:1
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
1.09:1

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
##180036
Display P3
Display P3
color(display-p3 0.0825 0.0039 0.2020)
P3 has subtle headroomOKLCH chroma 0.098

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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