colors
Back to gallery

Firm Broccoli

#42a015
Notes

Firm Broccoli (#42A015) is a true green with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (101°, 77%, 35%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#42a015
RGB
rgb(66, 160, 21)
HSL
hsl(101, 77%, 35%)
HWB
hwb(101 8% 37%)
OKLCH
oklch(62.4% 0.187 138.5)
P3
color(display-p3 0.3611 0.6194 0.2003)
HSV
hsv(101, 87%, 63%)
LAB
lab(58.37% -50.65 56.57)
LCH
lch(58.37% 75.93 131.84)
CMYK
cmyk(59%, 0%, 87%, 37%)

Etymology

Firm
adjective

Latin firmus, strong / stable — sharing root with English farm (originally a fixed-yearly-rental). As a color modifier, firm implies a saturated-and-resolute quality where the hue holds its visual position without wavering. Sits at the bold-and-firm end of the grid, parallel to steadfast and unwavering in usage.

Broccoli
noun

Brassica oleracea var. italica — the Italian-bred cabbage variety eaten for its tight green flower clusters, named from the Italian broccolo (cabbage sprout). Broccoli color refers to a fresh raw broccoli crown on a cutting board: a saturated, slightly cool deep green with the matte finish of dense green florets.

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.

#42a015
Original
#a59100
Protanopia
#9a8929
Deuteranopia
#389a88
Tritanopia
#828282
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
3.35:1
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
6.27:1

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
##42A015
Display P3
Display P3
color(display-p3 0.3611 0.6194 0.2003)
P3 has visible headroomOKLCH chroma 0.187

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

Canvas