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Caliginous Salvia

#1e2575
Notes

Caliginous Salvia (#1E2575) is a deep blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (235°, 59%, 29%) 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
#1e2575
RGB
rgb(30, 37, 117)
HSL
hsl(235, 59%, 29%)
HWB
hwb(235 12% 54%)
OKLCH
oklch(31.7% 0.135 272.1)
P3
color(display-p3 0.1230 0.1443 0.4411)
HSV
hsv(235, 74%, 46%)
LAB
lab(19.57% 26.31 -46.68)
LCH
lch(19.57% 53.59 299.40)
CMYK
cmyk(74%, 68%, 0%, 54%)

Etymology

Caliginous
adjective

Latin cālīginōsus, misty / dark — derived from cālīgō (mist, gloom). As a color modifier, caliginous implies an obscured, dimmed, slightly-cool-shifted quality where the hue is veiled by darkness or atmospheric fog. Sits at the deep-and-veiled end of the grid, between murky and tenebrous in usage.

Salvia
noun

The genus Salvia — the sages of the kitchen and ornamental sages of the garden — over 900 species, many with vivid blue-violet flower spikes that distinguish ornamental cultivars from culinary forms. The color refers to a fresh Salvia farinacea (mealy-cup sage) spike: a saturated, slightly violet-shifted blue with the matte finish of small lipped flowers along a single stem. Cooler than veronica, warmer than larkspur.

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.

#1e2575
Original
#003378
Protanopia
#002b73
Deuteranopia
#003a49
Tritanopia
#292929
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
13.32:1
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
1.58:1

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
##1E2575
Display P3
Display P3
color(display-p3 0.1230 0.1443 0.4411)
P3 has subtle headroomOKLCH chroma 0.135

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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