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Lionhearted Kohaku

#b53210
Notes

Lionhearted Kohaku (#B53210) 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 (12°, 84%, 39%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b53210
RGB
rgb(181, 50, 16)
HSL
hsl(12, 84%, 39%)
HWB
hwb(12 6% 29%)
OKLCH
oklch(51.5% 0.173 34.5)
P3
color(display-p3 0.6543 0.2379 0.1279)
HSV
hsv(12, 91%, 71%)
LAB
lab(41.45% 51.22 48.42)
LCH
lch(41.45% 70.49 43.39)
CMYK
cmyk(0%, 72%, 91%, 29%)

Etymology

Lionhearted
adjective

Old English lēona-heorte, lion's-heart — referring to Richard I Lionheart (1157–1199). As a color modifier, lionhearted implies a saturated-and-courageous-and-royal quality, the deep-rich color of Crusader-period English Plantagenet-royalty armorial bearings. Sits at the bold-and-chivalrous end of the grid, parallel to valiant and heroic.

Kohaku
noun

The Japanese name for amber — fossilized tree resin imported from Baltic deposits since the Heian period and worked into ornamental beads, sword fittings, and netsuke. Also the name of a koi cultivar with red markings on white. The color refers to a polished Baltic-amber bead in a Japanese tea-ceremony display: a warm, slightly translucent gold-orange with the depth of resin. Cooler than honey, deeper than tangerine.

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.

#b53210
Original
#5a4f07
Protanopia
#7a6c03
Deuteranopia
#c8002d
Tritanopia
#4b4b4b
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
6.13:1
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
3.43:1

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
##B53210
Display P3
Display P3
color(display-p3 0.6543 0.2379 0.1279)
P3 has subtle headroomOKLCH chroma 0.173

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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