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Calm Caviar

#150312
Notes

Calm Caviar (#150312) is a deep magenta 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 (310°, 75%, 5%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#150312
RGB
rgb(21, 3, 18)
HSL
hsl(310, 75%, 5%)
HWB
hwb(310 1% 92%)
OKLCH
oklch(14.5% 0.047 333.9)
P3
color(display-p3 0.0730 0.0146 0.0675)
HSV
hsv(310, 86%, 8%)
LAB
lab(2.42% 8.03 -4.41)
LCH
lch(2.42% 9.16 331.24)
CMYK
cmyk(0%, 86%, 14%, 92%)

Etymology

Calm
adjective

Latin calma, heat of the day — paradoxically drifted in Italian to mean stillness. Used as a color modifier since the seventeenth century for hues that read as untroubled. Calm blue, calm gray: moderate saturation combined with optical quiet. Sits at the crisp-bucket near quiet and steady.

Caviar
noun

The salted roe of Acipenser sturgeons from the Caspian Sea and Russian river systems — once an everyday peasant food, now an endangered luxury after a century of dam-building and overfishing. The color refers to a tin of fresh Beluga caviar: a deep, slightly muted gray-black with the optical complexity of small spherical eggs. Lighter than coal, cooler than sable, with the gourmand weight of a foodstuff measured in grams and dollars.

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.

#150312
Original
#030713
Protanopia
#070a11
Deuteranopia
#160408
Tritanopia
#080808
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
19.93:1
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
1.05:1

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
##150312
Display P3
Display P3
color(display-p3 0.0730 0.0146 0.0675)
Inside sRGBOKLCH chroma 0.047

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.

Related Colors

Canvas