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Effulgent Padparadscha

#ed751d
Notes

Effulgent Padparadscha (#ED751D) is a true orange with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (25°, 85%, 52%) 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
#ed751d
RGB
rgb(237, 117, 29)
HSL
hsl(25, 85%, 52%)
HWB
hwb(25 11% 7%)
OKLCH
oklch(69.1% 0.173 50.1)
HSV
hsv(25, 88%, 93%)
LAB
lab(62.36% 41.62 63.84)
LCH
lch(62.36% 76.20 56.90)
CMYK
cmyk(0%, 51%, 88%, 7%)

Etymology

Effulgent
adjective

Latin effulgēns, shining-out — present-participle of effulgere, sharing root with fulgor (lightning). As a color modifier, effulgent implies a saturated-and-radiating-light-out quality, the bright color of Renaissance-Madonna halo-and-aureole gold-leaf-and-pigment emission. Sits at the bright-and-saturated end of the grid, parallel to resplendent and radiant in usage.

Padparadscha
noun

A rare orange-pink variety of sapphire — corundum colored by trace chromium and iron in just the right balance. The name traces to the Sinhalese padma raga, lotus flower. Mined principally in Sri Lanka. The color refers to a faceted padparadscha: a saturated, slightly pink orange with the gem's signature internal life. Cooler than coral.

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.

#ed751d
Original
#988604
Protanopia
#b5a119
Deuteranopia
#ff5965
Tritanopia
#888888
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
2.93:1
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
7.16:1

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