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Reposeful Flash Mint

#639a8a
Notes

Reposeful Flash Mint (#639A8A) is a true teal with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (163°, 22%, 50%) places it in the muted 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#639a8a
RGB
rgb(99, 154, 138)
HSL
hsl(163, 22%, 50%)
HWB
hwb(163 39% 40%)
OKLCH
oklch(64.3% 0.063 173.9)
P3
color(display-p3 0.4366 0.5983 0.5439)
HSV
hsv(163, 36%, 60%)
LAB
lab(59.52% -21.89 2.66)
LCH
lch(59.52% 22.05 173.07)
CMYK
cmyk(36%, 0%, 10%, 40%)

Etymology

Reposeful
adjective

Latin repōnere, to put back — adjectival suffix -ful. As a color modifier, reposeful implies a clear-and-restful-and-still quality, the calm color of pre-modern monastic cloister-and-refectory meditative-and-silent interior architecture. Sits at the crisp-and-calm end of the grid, parallel to peaceful and placid in usage.

Flash
modifier

Middle English flasshen, to-splash-or-burst. As a color modifier, flash implies a sudden-and-bursting-and-bright quality, the visual register of lightning-strike-and-camera-flash hand-sudden-and-bursting-and-bright lightning-strike-and-camera-flash-and-magnesium-powder flashed-and-sudden-and-bursting surfaces under lightning-strike-and-camera-flash-and-magnesium-powder split-second-burst storm-cloud-and-studio-light. Sits at the modifier-and-mood end of the grid, parallel to spark and blaze in usage.

Mint
noun

The genus Mentha — peppermint, spearmint, apple mint, water mint — the cooling herb whose menthol gives it that quality at the molecular level. The color refers to fresh peppermint leaves before drying: a clean, slightly cool green with the matte finish of trichome-rich leaf surface. Lighter than basil, cooler than parsley, with the mojito-and-Pimm's association of a herb tied to summer drinks across two continents.

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.

#639a8a
Original
#969389
Protanopia
#8d8d8b
Deuteranopia
#539b95
Tritanopia
#8d8d8d
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).
AA Largeon White
3.22:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.52:1

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
##639A8A
Display P3
Display P3
color(display-p3 0.4366 0.5983 0.5439)
Inside sRGBOKLCH chroma 0.063

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.

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