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Cordial Lava

#01092a
Notes

Cordial Lava (#01092A) 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 (228°, 95%, 8%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#01092a
RGB
rgb(1, 9, 42)
HSL
hsl(228, 95%, 8%)
HWB
hwb(228 0% 84%)
OKLCH
oklch(15.9% 0.070 263.4)
HSV
hsv(228, 98%, 16%)
LAB
lab(3.33% 7.26 -21.42)
LCH
lch(3.33% 22.61 288.74)
CMYK
cmyk(98%, 79%, 0%, 84%)

Etymology

Cordial
adjective

Latin cordiālis, of-the-heart — adjectival suffix -al. As a color modifier, cordial implies a neutral-and-warm-and-friendly quality where the hue carries the visual register of Edwardian-Bed-and-Breakfast-and-country-inn warm-and-cordial-host interior-decoration-and-textile color tone. Sits at the neutral-and-friendly end of the grid, parallel to affable and amiable in usage.

Lava
noun

Italian for fall / flow via Latin lavare (to wash) — particularly the deep-glossy-black pahoehoe basaltic lava-flow of Hawaiian and Italian-Etna volcanic eruptions. Lava color refers to a freshly cooled pahoehoe basaltic lava-flow surface on the Big Island of Hawaii: a saturated, slightly cool deep black with the glassy finish of cooling-rate-quenched basaltic glass over crystallized iron-magnesium silicate.

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

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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.

#01092a
Original
#000e2b
Protanopia
#000a29
Deuteranopia
#001218
Tritanopia
#0a0a0a
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
19.56:1
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
1.07:1

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