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Hefty Turret Crimson

#b00421
Notes

Hefty Turret Crimson (#B00421) is a true 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 (350°, 96%, 35%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#b00421
RGB
rgb(176, 4, 33)
HSL
hsl(350, 96%, 35%)
HWB
hwb(350 2% 31%)
OKLCH
oklch(47.9% 0.192 23.6)
HSV
hsv(350, 98%, 69%)
LAB
lab(36.80% 60.74 35.75)
LCH
lch(36.80% 70.48 30.48)
CMYK
cmyk(0%, 98%, 81%, 31%)

Etymology

Hefty
adjective

Old English hefig, heavy — adjectival suffix -y. As a color modifier, hefty implies a saturated-and-substantial-and-weighty quality where the hue carries the visual heft of a hand-cast pig-iron object. Sits at the bold-and-weighty end of the grid, parallel to substantial and weighty in usage.

Turret
modifier

Old French touret, small-tower. As a color modifier, turret implies a small-decorative-tower-on-castle quality, the visual register of Loire-Valley-château-and-Disney-castle-turret hand-built small-decorative-castle-and-château turret-and-spire architectural surfaces under French-and-fairy-tale-château turret-and-spire light. Sits at the modifier-and-architecture end of the grid, parallel to tower and spire 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.

#b00421
Original
#484120
Protanopia
#6e6219
Deuteranopia
#c20015
Tritanopia
#2b2b2b
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
7.28:1
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
2.89:1

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