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Phosphoric Mughal

#99ad13
Notes

Phosphoric Mughal (#99AD13) is a true yellow 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 (68°, 80%, 38%) 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
#99ad13
RGB
rgb(153, 173, 19)
HSL
hsl(68, 80%, 38%)
HWB
hwb(68 7% 32%)
OKLCH
oklch(70.8% 0.160 117.8)
HSV
hsv(68, 89%, 68%)
LAB
lab(67.06% -24.52 66.19)
LCH
lch(67.06% 70.59 110.33)
CMYK
cmyk(12%, 0%, 89%, 32%)

Etymology

Phosphoric
adjective

Greek phōsphóros, light-bringer — adjectival suffix -ic. As a color modifier, phosphoric implies a saturated-and-cool-glow quality, the bright color of match-tip-strike and firefly phosphorus-emission luminescence. Sits at the bright-and-cool end of the grid, parallel to phosphorescent and fluorescent in usage.

Mughal
noun

The Mughal Empire (1526–1857) — and the warm yellow palette of Mughal miniature painting, particularly the Mughal Yellow pigment derived from cow urine and used for the saturated yellow robes of Akbar-period court paintings. The color refers to a Mughal jali sandstone screen at the Diwan-i-Khas: a saturated, slightly red-shifted deep yellow with the matte finish of carved sandstone.

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.

#99ad13
Original
#b9a300
Protanopia
#b7a427
Deuteranopia
#a3a393
Tritanopia
#9e9e9e
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
2.52:1
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
8.34:1

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