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Tomblike Procida

#123d5b
Notes

Tomblike Procida (#123D5B) is a deep azure 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 (205°, 67%, 21%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#123d5b
RGB
rgb(18, 61, 91)
HSL
hsl(205, 67%, 21%)
HWB
hwb(205 7% 64%)
OKLCH
oklch(34.6% 0.070 243.3)
P3
color(display-p3 0.1192 0.2356 0.3471)
HSV
hsv(205, 80%, 36%)
LAB
lab(24.39% -3.03 -22.11)
LCH
lch(24.39% 22.31 262.19)
CMYK
cmyk(80%, 33%, 0%, 64%)

Etymology

Tomblike
adjective

Greek tymbos, tomb — adjectival suffix -like. As a color modifier, tomblike implies the deep-and-funereal-and-sepulchral quality of Etruscan-and-Egyptian rock-cut royal-tomb interiors, particularly the Valley-of-the-Kings and Cerveteri-necropolis hand-carved chamber-painting walls. Sits at the deep-and-funereal end of the grid, parallel to sepulchral and crypted.

Procida
noun

The smallest of the Phlegraean Islands in the Bay of Naples — and the saturated blue of Procidan fishermen's house facades at Marina Corricella. Procida refers to a fisherman's house at Marina Corricella: a saturated, slightly cool deep blue with the matte finish of weathered Mediterranean limewash.

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.

#123d5b
Original
#2f3e5c
Protanopia
#25375a
Deuteranopia
#004448
Tritanopia
#363636
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
11.39:1
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
1.84:1

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
##123D5B
Display P3
Display P3
color(display-p3 0.1192 0.2356 0.3471)
Inside sRGBOKLCH chroma 0.070

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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