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Soft Specularite

#150303
Notes

Soft Specularite (#150303) is a deep red 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 (0°, 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#150303
RGB
rgb(21, 3, 3)
HSL
hsl(0, 75%, 5%)
HWB
hwb(0 1% 92%)
OKLCH
oklch(13.7% 0.038 23.5)
P3
color(display-p3 0.0730 0.0146 0.0132)
HSV
hsv(0, 86%, 8%)
LAB
lab(2.09% 5.68 2.00)
LCH
lch(2.09% 6.02 19.41)
CMYK
cmyk(0%, 86%, 86%, 92%)

Etymology

Soft
adjective

Old English sōfte, gentle — used as a color modifier since the medieval period for hues that read as low-contrast and unaggressive. Soft pink, soft gray: low saturation combined with optical gentleness. Sits across the hushed and pale buckets alongside gentle.

Specularite
noun

Specular hematite, a metallic-gray-to-deep-black variety of Fe₂O₃ — used in the prehistoric Lake Superior copper-mining culture for ceremonial pigment and cosmetics. Specularite color refers to a freshly mined Marquette Range specularite ore-block face: a saturated, slightly cool deep black with the metallic finish of platy-cleavage hematite ore. Slightly cooler than magnetite and warmer than ilmenite.

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.

#150303
Original
#060503
Protanopia
#0b0903
Deuteranopia
#180103
Tritanopia
#070707
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
20.07:1
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
##150303
Display P3
Display P3
color(display-p3 0.0730 0.0146 0.0132)
Inside sRGBOKLCH chroma 0.038

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

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