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Effulgent Wax Peridot

#c4d53e
Notes

Effulgent Wax Peridot (#C4D53E) is a true yellow 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 (67°, 64%, 54%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#c4d53e
RGB
rgb(196, 213, 62)
HSL
hsl(67, 64%, 54%)
HWB
hwb(67 24% 16%)
OKLCH
oklch(83.4% 0.169 115.8)
P3
color(display-p3 0.7810 0.8332 0.3516)
HSV
hsv(67, 71%, 84%)
LAB
lab(81.66% -24.36 68.46)
LCH
lch(81.66% 72.67 109.59)
CMYK
cmyk(8%, 0%, 71%, 16%)

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.

Wax
modifier

Old English weax, beeswax. As a color modifier, wax implies a translucent-and-warm quality, the visual register of beeswax-and-paraffin hand-rolled-and-poured candle-and-wax-tablet beeswax-and-paraffin candle-and-wax-tablet surfaces under candlelit-beeswax-and-paraffin warm-glow. Sits at the modifier-and-texture end of the grid, parallel to waxen and honey in usage.

Peridot
noun

The transparent green variety of olivine — the gem mined from Egyptian Zabargad Island since pharaonic times and now from arid mountain ranges in Pakistan, Arizona, and Vietnam. The color refers to a faceted peridot: a clean, slightly yellow-shifted green with the gem's signature internal warmth. Lighter than emerald, brighter than olivine in its rough state, with the unusual gem-trade quality of being one of the few minerals that occurs in only one color.

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.

#c4d53e
Original
#e4ca23
Protanopia
#e3cc4a
Deuteranopia
#d0c9b8
Tritanopia
#c6c6c6
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
1.62:1
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
12.93:1

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
##C4D53E
Display P3
Display P3
color(display-p3 0.7810 0.8332 0.3516)
P3 has subtle headroomOKLCH chroma 0.169

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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