colors
Back to gallery

Heartening Phuket

#377d77
Notes

Heartening Phuket (#377D77) is a true cyan 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 (175°, 39%, 35%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#377d77
RGB
rgb(55, 125, 119)
HSL
hsl(175, 39%, 35%)
HWB
hwb(175 22% 51%)
OKLCH
oklch(54.3% 0.071 187.7)
P3
color(display-p3 0.2888 0.4840 0.4655)
HSV
hsv(175, 56%, 49%)
LAB
lab(48.02% -23.47 -3.40)
LCH
lch(48.02% 23.72 188.25)
CMYK
cmyk(56%, 0%, 5%, 51%)

Etymology

Heartening
adjective

Old English heorte (heart) — present-participle of hearten. As a color modifier, heartening implies a clear-and-uplifting-and-encouraging quality where the hue carries the visual register of cheerful-encouraging color-tone. Sits at the crisp-and-cheerful end of the grid, parallel to welcoming and cheerful in usage.

Phuket
noun

The Thai island in the Andaman Sea — and the saturated turquoise of Phuket's western beach water at Patong and Karon. Phuket refers to the beach water at midday: a saturated, slightly cool deep blue-green with the optical clarity of warm tropical-Asian water.

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.

#377d77
Original
#777777
Protanopia
#6b6e78
Deuteranopia
#00807b
Tritanopia
#6e6e6e
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).
AAon White
4.81:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.36:1

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
##377D77
Display P3
Display P3
color(display-p3 0.2888 0.4840 0.4655)
Inside sRGBOKLCH chroma 0.071

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

Canvas