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Assured Tobi

#a42d24
Notes

Assured Tobi (#A42D24) is a true red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (4°, 64%, 39%) 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
#a42d24
RGB
rgb(164, 45, 36)
HSL
hsl(4, 64%, 39%)
HWB
hwb(4 14% 36%)
OKLCH
oklch(48.1% 0.157 28.7)
HSV
hsv(4, 78%, 64%)
LAB
lab(37.66% 48.01 34.15)
LCH
lch(37.66% 58.92 35.42)
CMYK
cmyk(0%, 73%, 78%, 36%)

Etymology

Assured
adjective

Old French aseürer, to give assurance — past-participle of assure. As a color modifier, assured implies a saturated-and-confident quality where the hue carries unwavering certainty about its own visual identity. Sits at the bold-and-confident end of the grid, parallel to certain and poised.

Tobi
noun

Named for the tobi — the black kite (Milvus migrans) — the slightly muted red-brown of the bird's plumage and of the tobi-iro dye traditionally used in working-class Edo dress. The color refers to a freshly-dyed tobi-iro cotton: a soft, slightly muted red-brown with the matte finish of plant-and-iron mordant. Drier than rust, warmer than maroon.

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

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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.

#a42d24
Original
#504822
Protanopia
#6e621f
Deuteranopia
#b5002c
Tritanopia
#464646
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
7.05:1
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
2.98:1

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