colors
Back to gallery

Cool Yellowtail

#dde687
Notes

Cool Yellowtail (#DDE687) is a soft 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 (66°, 66%, 72%) places it in the balanced band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. 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
#dde687
RGB
rgb(221, 230, 135)
HSL
hsl(66, 66%, 72%)
HWB
hwb(66 53% 10%)
OKLCH
oklch(89.7% 0.119 113.2)
HSV
hsv(66, 41%, 90%)
LAB
lab(88.79% -16.90 45.18)
LCH
lch(88.79% 48.24 110.51)
CMYK
cmyk(4%, 0%, 41%, 10%)

Etymology

Cool
adjective

Old English cōl, of low temperature — used as a color modifier as the complement to warm. Cool gray, cool blue: the optical impression of a slight blue-green shift, even within otherwise warm or neutral hues. Sits across the crisp, hushed, pale, and neutral buckets.

Yellowtail
noun

Seriola lalandi, the Pacific yellowtail amberjack — a sport fish prized in Japanese sushi cuisine as hamachi. The color refers to the yellow stripe along the lateral line: a saturated, slightly cool yellow with the matte finish of carotenoid-pigmented fish skin. Cooler than goldfinch.

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.

#dde687
Original
#f3de7f
Protanopia
#f2e08b
Deuteranopia
#e8dccf
Tritanopia
#dddddd
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
1.33:1
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
15.74:1

Related Colors

Canvas