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Vibrant Indochina

#c1b817
Notes

Vibrant Indochina (#C1B817) is a true yellow with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (57°, 79%, 42%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#c1b817
RGB
rgb(193, 184, 23)
HSL
hsl(57, 79%, 42%)
HWB
hwb(57 9% 24%)
OKLCH
oklch(76.6% 0.159 105.9)
HSV
hsv(57, 88%, 76%)
LAB
lab(73.34% -12.62 71.84)
LCH
lch(73.34% 72.94 99.96)
CMYK
cmyk(0%, 5%, 88%, 24%)

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.

Indochina
noun

The historical name for mainland Southeast Asia — Vietnam, Laos, Cambodia. Indochina as a color refers to the warm yellow of Cambodian and Vietnamese rice paddies in late autumn: a saturated, slightly red-shifted gold-yellow with the matte finish of ripening grain across an entire landscape.

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.

#c1b817
Original
#c9b100
Protanopia
#ccb729
Deuteranopia
#d0ab9d
Tritanopia
#aeaeae
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).
Failon White
2.07:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
10.14:1

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