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Spangled Spa

#57ca7c
Notes

Spangled Spa (#57CA7C) is a true green with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (139°, 52%, 57%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#57ca7c
RGB
rgb(87, 202, 124)
HSL
hsl(139, 52%, 57%)
HWB
hwb(139 34% 21%)
OKLCH
oklch(75.3% 0.153 151.5)
HSV
hsv(139, 57%, 79%)
LAB
lab(73.36% -49.80 29.40)
LCH
lch(73.36% 57.83 149.44)
CMYK
cmyk(57%, 0%, 39%, 21%)

Etymology

Spangled
adjective

Middle Dutch spange, clasp / metal-disc — past-participle of spangle. As a color modifier, spangled implies a saturated-and-multi-point-reflective quality, the bright color of American-flag-stars and sequined-fabric metallic-disc-and-jewel-decoration. Sits at the bright-and-reflective end of the grid, parallel to glittering and sequined in usage.

Spa
noun

A mineral-spring resort — named for the Belgian town of Spa whose iron-rich springs have drawn visitors since the sixteenth century. Spa color refers to a thermal spring pool at Saturnia in Tuscany: a saturated, slightly cool deep blue-green with the optical complexity of mineral-saturated 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

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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.

#57ca7c
Original
#cbbb77
Protanopia
#bbb081
Deuteranopia
#37c7b6
Tritanopia
#acacac
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
2.07:1
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
10.14:1

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