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Occluded Kalmia

#1c0b42
Notes

Occluded Kalmia (#1C0B42) 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 (259°, 71%, 15%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1c0b42
RGB
rgb(28, 11, 66)
HSL
hsl(259, 71%, 15%)
HWB
hwb(259 4% 74%)
OKLCH
oklch(21.7% 0.096 290.1)
P3
color(display-p3 0.1008 0.0464 0.2479)
HSV
hsv(259, 83%, 26%)
LAB
lab(7.94% 24.44 -31.46)
LCH
lch(7.94% 39.84 307.84)
CMYK
cmyk(58%, 83%, 0%, 74%)

Etymology

Occluded
adjective

Latin occludere, to close up — past-participle of occlude. As a color modifier, occluded implies a hue blocked-and-dimmed by an intervening physical barrier. Sits at the deep-and-obscured end of the grid, parallel to eclipsed and cloaked but more clinical in register.

Kalmia
noun

North American mountain laurel (Kalmia latifolia) — an Ericaceae evergreen shrub native to Appalachia, with cup-shaped pink-and-violet pentahedral flowers in late spring. Kalmia color refers to a fully bloomed Kalmia latifolia corymb: a saturated, slightly cool deep blue-violet with the velvet finish of fused-petaled cup flowers around a tense ring of bow-loaded stamens. Named for Pehr Kalm, Linnaeus's Swedish-Finnish student-botanist.

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.

#1c0b42
Original
#001844
Protanopia
#001641
Deuteranopia
#0f1a25
Tritanopia
#131313
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
17.86:1
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
1.18:1

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
##1C0B42
Display P3
Display P3
color(display-p3 0.1008 0.0464 0.2479)
P3 has subtle headroomOKLCH chroma 0.096

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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