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Tracer Pyrite

#e9b51c
Notes

Tracer Pyrite (#E9B51C) 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 (45°, 82%, 51%) 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
#e9b51c
RGB
rgb(233, 181, 28)
HSL
hsl(45, 82%, 51%)
HWB
hwb(45 11% 9%)
OKLCH
oklch(79.9% 0.158 86.9)
P3
color(display-p3 0.8820 0.7178 0.2670)
HSV
hsv(45, 88%, 91%)
LAB
lab(76.35% 6.48 74.81)
LCH
lch(76.35% 75.09 85.05)
CMYK
cmyk(0%, 22%, 88%, 9%)

Etymology

Tracer
adjective

Old French tracier, to trace — sharing root with English trace and track. As a color modifier, tracer implies a saturated-and-streak-of-light quality, the bright color of military-tracer-round and long-exposure-photography light-trail visual streak. Sits at the bright-and-active end of the grid, parallel to flashing and streaking in usage.

Pyrite
noun

An iron sulfide mineral — fool's gold — whose brassy yellow metallic luster has fooled prospectors since the California Gold Rush. Mined principally in Spain (Rio Tinto), Peru, and Italy. The color refers to a polished pyrite cube: a saturated, slightly cool deep gold with the metallic finish of crystallized iron sulfide.

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.

#e9b51c
Original
#cdb400
Protanopia
#d9c228
Deuteranopia
#fda39b
Tritanopia
#b5b5b5
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
1.89:1
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
11.09:1

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
##E9B51C
Display P3
Display P3
color(display-p3 0.8820 0.7178 0.2670)
P3 has subtle headroomOKLCH chroma 0.158

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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