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Confident Romaine

#418b15
Notes

Confident Romaine (#418B15) is a deep lime 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 (98°, 74%, 31%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#418b15
RGB
rgb(65, 139, 21)
HSL
hsl(98, 74%, 31%)
HWB
hwb(98 8% 45%)
OKLCH
oklch(56.7% 0.163 137.2)
P3
color(display-p3 0.3306 0.5384 0.1771)
HSV
hsv(98, 85%, 55%)
LAB
lab(51.43% -43.01 50.38)
LCH
lch(51.43% 66.24 130.49)
CMYK
cmyk(53%, 0%, 85%, 45%)

Etymology

Confident
adjective

A late-Latin participle, confidens, trusting — borrowed into English in the sixteenth century. As a color modifier, confident implies saturation combined with poise: a confident red doesn't try too hard, just sits at the level of its hue without overreaching. Sits in the bold-bucket center near bold and resolute.

Romaine
noun

Lactuca sativa var. longifolia, the upright lettuce variety whose tall green-and-white heads are essential to Caesar salad. Named for Rome, where the Romans cultivated it for European salad tradition. The color refers to a fresh romaine leaf: a soft, slightly cool yellow-green with the satin finish of dewy lettuce.

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.

#418b15
Original
#907e00
Protanopia
#867824
Deuteranopia
#3c8676
Tritanopia
#737373
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
4.26:1
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
4.93:1

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
##418B15
Display P3
Display P3
color(display-p3 0.3306 0.5384 0.1771)
P3 has subtle headroomOKLCH chroma 0.163

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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