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Resonant Glide Crimson

#c12830
Notes

Resonant Glide Crimson (#C12830) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (357°, 66%, 46%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#c12830
RGB
rgb(193, 40, 48)
HSL
hsl(357, 66%, 46%)
HWB
hwb(357 16% 24%)
OKLCH
oklch(53.0% 0.188 24.2)
HSV
hsv(357, 79%, 76%)
LAB
lab(42.87% 59.11 34.51)
LCH
lch(42.87% 68.45 30.27)
CMYK
cmyk(0%, 79%, 75%, 24%)

Etymology

Resonant
adjective

Latin resonāns, echoing — present-participle of resonate, sharing root with sonance. As a color modifier, resonant implies a saturated-and-deep-vibrating quality where the hue carries low-frequency visual richness. Sits at the bold-and-resonant end of the grid, parallel to sonorous and resounding in usage.

Glide
modifier

Old English glīdan, to-move-smoothly. As a color modifier, glide implies a smooth-and-silent-and-frictionless quality, the visual register of swan-and-skater-glide hand-smooth-and-silent-and-frictionless swan-and-skater-and-soaring-albatross glided-and-smooth-and-silent-and-frictionless surfaces under swan-and-skater-and-soaring-albatross frozen-pond-and-Hyde-Park-Serpentine-and-open-ocean smooth-flight-light. Sits at the modifier-and-mood end of the grid, parallel to float and hover in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#c12830
Original
#58502f
Protanopia
#7e712a
Deuteranopia
#d5002d
Tritanopia
#494949
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).
AAon White
5.81:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.61:1

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