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Coruscating Verdelite

#42bc52
Notes

Coruscating Verdelite (#42BC52) is a true green 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 (128°, 48%, 50%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#42bc52
RGB
rgb(66, 188, 82)
HSL
hsl(128, 48%, 50%)
HWB
hwb(128 26% 26%)
OKLCH
oklch(70.4% 0.182 145.5)
P3
color(display-p3 0.4017 0.7274 0.3721)
HSV
hsv(128, 65%, 74%)
LAB
lab(67.82% -55.47 43.29)
LCH
lch(67.82% 70.36 142.03)
CMYK
cmyk(65%, 0%, 56%, 26%)

Etymology

Coruscating
adjective

Latin coruscāns, flashing — present-participle of coruscāre. As a color modifier, coruscating implies a saturated-and-rapidly-flashing quality, the bright color of lightning-strike atmospheric-electrical-discharge against the night-sky. Sits at the bright-and-flashing end of the grid, parallel to flashing and flickering in usage.

Verdelite
noun

A trade synonym for green tourmaline — used to distinguish chromium-rich tourmaline from rubellite (red) and indicolite (blue). Mined principally in Brazil, Mozambique, and Maine. The color refers to a faceted Brazilian verdelite: a saturated, slightly cool deep green with the gem's signature internal warmth.

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.

#42bc52
Original
#bfac48
Protanopia
#b0a15a
Deuteranopia
#20b7a4
Tritanopia
#9a9a9a
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
2.46:1
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
8.55:1

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
##42BC52
Display P3
Display P3
color(display-p3 0.4017 0.7274 0.3721)
P3 has visible headroomOKLCH chroma 0.182

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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