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Vibrant Kogecha

#c58909
Notes

Vibrant Kogecha (#C58909) is a true amber with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (41°, 91%, 40%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#c58909
RGB
rgb(197, 137, 9)
HSL
hsl(41, 91%, 40%)
HWB
hwb(41 4% 23%)
OKLCH
oklch(67.3% 0.139 77.3)
HSV
hsv(41, 95%, 77%)
LAB
lab(61.47% 14.01 65.35)
LCH
lch(61.47% 66.83 77.90)
CMYK
cmyk(0%, 30%, 95%, 23%)

Etymology

Vibrant
adjective

From the Latin vibrare, to shake — used as a color word since the seventeenth century for hues that read as alive and resonant. Vibrant orange, vibrant green: the implication is saturation combined with the optical impression of slight motion or energy. Sits at the bright-bucket center alongside vivid and lively.

Kogecha
noun

Literally burnt tea in Japanese — the deep brown of over-roasted hojicha tea leaves and the dark brown lacquer of Edo-period byōbu frames. The color refers to a kogecha-stained wood surface: a deep, slightly cool dark brown with the matte finish of carbonized organic material. Drier than walnut, deeper than tabacco.

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.

#c58909
Original
#9f8c00
Protanopia
#ad9a14
Deuteranopia
#d77875
Tritanopia
#8d8d8d
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).
AA Largeon White
3.02:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.96:1

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