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Pithed Lazurite

#1c2288
Notes

Pithed Lazurite (#1C2288) 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 (237°, 66%, 32%) 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
#1c2288
RGB
rgb(28, 34, 136)
HSL
hsl(237, 66%, 32%)
HWB
hwb(237 11% 47%)
OKLCH
oklch(33.1% 0.165 270.7)
P3
color(display-p3 0.1143 0.1326 0.5122)
HSV
hsv(237, 79%, 53%)
LAB
lab(20.70% 35.11 -56.87)
LCH
lch(20.70% 66.84 301.69)
CMYK
cmyk(79%, 75%, 0%, 47%)

Etymology

Pithed
adjective

Old English piþa, pith / inner stalk — past-participle of pith. As a color modifier, pithed implies a deep-and-cored-out quality where the visual surface has been excavated to reveal interior darkness. Sits at the deep-and-architectural end of the grid, parallel to hollowed and cored.

Lazurite
noun

The principal mineral of lapis lazuli — a sodium-aluminum sulfate-silicate from the Sar-e-Sang mines in Badakhshan province of northeastern Afghanistan, the Renaissance source for ultramarine pigment. Lazurite color refers to a freshly cut Sar-e-Sang lapis face showing the central lazurite nucleus: a saturated, slightly cool deep blue-violet with the matte finish of pyrite-flecked lazurite ore.

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.

#1c2288
Original
#00378b
Protanopia
#002c86
Deuteranopia
#003f53
Tritanopia
#282828
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
12.85:1
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
1.63:1

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
##1C2288
Display P3
Display P3
color(display-p3 0.1143 0.1326 0.5122)
P3 has subtle headroomOKLCH chroma 0.165

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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