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Grave Hong

#370910
Notes

Grave Hong (#370910) 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 (351°, 72%, 13%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#370910
RGB
rgb(55, 9, 16)
HSL
hsl(351, 72%, 13%)
HWB
hwb(351 4% 78%)
OKLCH
oklch(22.8% 0.072 16.5)
P3
color(display-p3 0.1961 0.0497 0.0663)
HSV
hsv(351, 84%, 22%)
LAB
lab(9.36% 23.13 7.58)
LCH
lch(9.36% 24.34 18.14)
CMYK
cmyk(0%, 84%, 71%, 78%)

Etymology

Grave
adjective

Latin gravis, heavy — also the noun grave (burial pit). As a color modifier, grave implies a deep-and-formal seriousness where the hue carries weight beyond its lightness alone. Sits at the deep-and-solemn end of the grid, parallel to solemn and funereal in tone.

Hong
noun

The fundamental Chinese word for red — and the cultural color of weddings, festivals, lacquerware, and prosperity across thousands of years of Han through modern use. The color refers to zhongguohong (China red) — the saturated lacquer red of imperial palaces and bridal sashes: a saturated, slightly orange-shifted deep red with the high gloss of lacquer. Brighter than crimson, deeper than vermillion.

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.

#370910
Original
#151410
Protanopia
#211e0f
Deuteranopia
#3d010c
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
17.37:1
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
1.21:1

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
##370910
Display P3
Display P3
color(display-p3 0.1961 0.0497 0.0663)
Inside sRGBOKLCH chroma 0.072

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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