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Deathly Ginkgo

#403f03
Notes

Deathly Ginkgo (#403F03) is a deep 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 (59°, 91%, 13%) places it in the highly saturated band at a dark 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
#403f03
RGB
rgb(64, 63, 3)
HSL
hsl(59, 91%, 13%)
HWB
hwb(59 1% 75%)
OKLCH
oklch(35.7% 0.075 108.6)
P3
color(display-p3 0.2503 0.2472 0.0639)
HSV
hsv(59, 95%, 25%)
LAB
lab(25.72% -7.24 33.21)
LCH
lch(25.72% 33.99 102.30)
CMYK
cmyk(0%, 2%, 95%, 75%)

Etymology

Deathly
adjective

Old English dēath, death — adjectival suffix -ly. As a color modifier, deathly implies a deep-cool-and-pallid quality, the cold-shifted darkness associated with mortality and absence of vital warmth. Sits at the deep-and-cool end of the grid, parallel to funereal but with pallor undertone.

Ginkgo
noun

Ginkgo biloba, the Chinese tree species predating dinosaurs — a living fossil whose fan-shaped leaves turn brilliant yellow in autumn. Often called the maidenhair tree. The color refers to a Ginkgo canopy at peak autumn color: a saturated, slightly cool deep yellow with the satin finish of carotenoid-rich autumn leaves.

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.

#403f03
Original
#453c00
Protanopia
#463e08
Deuteranopia
#463a34
Tritanopia
#3b3b3b
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).
AAAon White
10.88:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.93:1

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
##403F03
Display P3
Display P3
color(display-p3 0.2503 0.2472 0.0639)
Inside sRGBOKLCH chroma 0.075

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

Related Colors

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